Answer:
B.an error occurs when the damaged DNA is repairex
Explanation:
the best answer is B
The damaged DNA can lead to a mutation represent that option b. An error occurs when the damaged DNA is repaired.
Reason for damaged DNA?In the case when the DNA is damaged so it should be replicated that shows an incorrect base which should be inserted opposite the site of the damaged base in the strand i.e. complementary.
Due to this, it should become the mutation at the coming replication round.
Moreover, the double-strand DNA split might be repaired.
Hence, the option b is correct.
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. What was Sharon’s experience with the experimental drug?
a) she suffered severe side effects b) she had few side effects c) it made her very sick
Answer:
imagine being on brainly
Explanation:
You are monitoring the metabolism of two different cultures of the same species of yeast, which you have labeled Culture A and Culture B. One of your observations is that Culture A is using up about 10 times the amount of glucose per unit of time as Culture B. Which one of the following conclusions could you reasonably draw regarding these cultures?
A. Culture A would be accumulating lactic acid.
B. Culture A is being grown aerobically; Culture B is being grown anaerobically.
C. Only Culture A is recycling its NADH back to NAD+.
D. Culture A and Culture B are synthesizing the same amount of ATP per unit of glucose in glycolysis.
E. None of the above conclusions could be drawn from the information given.
Answer: D
Explanation: The experiment was set up using the very same species of yeast labeled differently. What this means is that they are of the same type or kind and thus would exhibit similar features from feeding to the metabolism of the food they take and subsequent production of by-products of the fermentation process. In this regard, therefore, the reasonable conclusion that can be drawn regarding these cultures is that both cultures A and B are synthesizing the same amount of ATP per unit of glucose in glycolysis (the cellular degradation of the simple sugar glucose to yield pyruvic acid, and ATP as an energy source).
Given two types of starfish, gold ones and purple ones, that are members of the same species. In your sample area, there are 325 gold starfish and 150 purple starfish (assume purple is dominant)
A. Find the genotype frequencies for "SS", "Ss", & "ss"
B. Find the allele frequencies for "S" (p) & "s" (q)
Answer: I believe I can fly
Explanation:
I believe I can touch the sky.
JK Love you bae
which feature of a membrane describes wether molecules can cross the membrane
Answer:
Permeability
Explanation:
Membranes are semi-permeable that only certain things can come cross on its own. This feature of permeability describes whether molecules can cross the membrane
Should certain vaccines be required?
Explain your answer to the question above.
Answer:
Yes
Explanation:
Vaccines, are dangerous but also very helpful. Most vaccines we have now help prevent the original disease they are designed with. Such as Polio.
Help this Helps!
You have decided to examine the dynamic properties of a flagellum. After having isolated flagella from sea urchin sperms, you placed them into an aqueous buffer with a pH of 7.0. Very rapidly, however, you observed that the movement of the isolated flagella stopped. Which hypothesis are you likely to propose to explain that result?
Answer:
Osmosis
Explanation:
In this case, osmosis has occurred, and that is why the movement of the flagellum stops.
It should be understood that osmosis is the movement of substances from the region of lower concentration to the region of lower concentration through a semi- permeable membrane.
Arrange the followings so that they accurately display the anatomical terms from bottom to top in order of the deepest to most superficial.
a. hair shaft
b. hair bulb
c. dermal papilla
d. hair root
e. hair matrix
Answer:
The correct arrangement from starting with the one at the bottom and/or deepest to the most obvious to the eye is:
E) Hair Matrix (Deepest)
C) Dermal Papilla
B) Hair Bulb
D) Hair Root
A) Hair Shaft (Most superficial)
Cheers!
Consider an experiment where you digest a DNA molecule with restriction enzyme BclI. You resolve the products of the digest by gel electrophoresis. Then, you cut out each of the resulting two bands from the gel and sequence the DNA. The sequencing results return two DNA segments.
Segment 1
5′ CCGCGGT 3′
3′ GGCGCCACTAG 5′
Segment 2
5′ GATCAGGATCC 3′
3′ TCCTAGG 5′
1. What is the sequence of the BclI recognition site?
2. What type of ends do the products have?
Answer:
This BclI restriction enzyme recognizes and cut at T / CTAG nucleotide sequences.
Explanation:
5′ CCGCGGT 3′
3′ GGCGCCACTAG 5′
Segment 2
5′ GATCAGGATCC 3′
3′ TCCTAGG 5′
The BclI enzyme generates sticky ends, it means that the enzyme recognises and cuts nucleotide sequences without complementary bases, which also have weak hydrogen bonds. The sticky ends are then generated when an enzyme produces unpaired nucleotide ends. Nonetheless, restriction enzymes generally produce blunt ends, i.e., both strands cut at the same site.
Interplanetary material that enters the earths atmosphere and collides with the ground rather than burning up is called
Explanation:Meteorito o meteoro
A student is given a list of traits and is asked to organize them in a Venn diagram as shown below.
Inherited Both Acquired
Traits
Wolf's social status
Tiger's stripes
Blood type A
A scar
Skin color
Musical talent
-
III
Q
Which traits should the student put in section II (Both)?
O a scar and blood type
tiger's stripes and wolf's social status
musical talent and wolf's social status
musical talent and skin color
Answer: a scar and wolf's social status
Explanation:
The acquired traits can be defined as the traits, which are only influenced by the environment of the organism. The acquired trait cannot be passed down to the offspring, as they are not genetically determined. A scar and the social status of any organism is dependent on the behavior of the organism to the environment, no genes code for both of these characters. So, scars and Wolf's social status is an acquired trait.
The trait that should be put in section II (Both) is "a scar", as scars can be acquired due to injury or trauma, but some people may also have a genetic predisposition to scarring.
What are inherited and acquired trait?Inherited traits are characteristics that are determined by an individual's genetic makeup and are passed down from parents to their offspring through the process of reproduction. Examples of inherited traits include eye color, hair color, blood type, and facial features.
Acquired traits are characteristics that are developed during an individual's lifetime as a result of their interactions with the environment. Examples of acquired traits include scars, calluses, tanned skin, learned behaviors, and language proficiency.
While some traits may be either entirely inherited or acquired, many traits are influenced by both genetic and environmental factors. The complex interplay between nature and nurture contributes to the vast diversity of traits and characteristics found within the human population.
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Katie wants to make ball-and-stick models of the four macromolecules. She has colored balls for each of the elements in these molecules, including the following.
Answer:
I don't really understand what the question is, but I'm pretty sure you're asking for which molecules that will be needed; Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus
Explanation:
-Carbohydrate consists mainly of Carbon, Hydrogen, Oxygen, simple sugars have the basic formula of (CH2O)n. Some modification can be made to the sugar, but the main formula consists only with Carbon, Hydrogen, Oxygen.
-Proteins consists mainly of Carbon, Hydrogen, Oxygen, and Nitrogen for the amide groups. Some amino acid will need Sulfur for it's R Group.
-Fats consists mainly of Carbon, Hydrogen, and Oxygen just like Glucose.
-Nucleic Acids consists mainly of Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus for the backbone of the Nucleic Acid. Nitrogen will be needed for the Nitrogenous Base.
I hope this is the answer you're looking for!
Which statement is true of viruses? A. Viruses do not consist of cells, but they have cell membranes, cytoplasm, ribosomes, and other cell organelles. B. Viruses do not consist of cells; they lack cell membranes, but do have cytoplasm, ribosomes, and other cell organelles. C. Viruses do not consist of cells; they also lack cell membranes, cytoplasm, ribosomes, and other cell organelles. D. Viruses are cells with cell membranes, cytoplasm, ribosomes, and other cell organelles.
Answer:
C. Viruses do not consist of cells; they also lack cell membranes, cytoplasm, ribosomes, and other cell organelles.
Explanation:
Viruses are only composed of a couple things: strands of nucleic acid that can be DNA or RNA, a protein coat called a capsid, and potentially a glycolipid coat to protect the outside.
There are no organelles, nor are there cells. Keep in mind that a virus is nonliving, so D is utterly wrong.
Based on the objective you should feel comfortable calculating expected genotype frequencies when given observed allele frequencies. You should also be able to compare expected genotype frequencies from HWE to observed frequencies and determine if evolution is occurring.Here's a sample problem. You can do this without a calculator!Let's take the noob gene, a gene with two known alleles that determines feather color in the eastern lark. The two alleles, let's call them delta and gamma, can be sequenced. In fact, looking at a population in southern GA, you discover that 60% of the alleles in the population are the delta allele.1. What is the percentage of the gamma allele in the population?2. Even more interesting, based on HWE what is the expected frequency of the population that is homozygous gamma? 3. Now, after surveying an isolated population of eastern larks, you find that 20% of the population is homozygous gama (gamma gamma), 65% heterozygous (gamma delta) and 10% homozygous delta (delta delta) and 5% of the population is a previously undescribed genotype - zeta zeta (homozygous zeta). What can you conclude about evolution in the population and why? If evolution is occurring, which mechanism(s) would be responsible?
Answer and Explanation:
60% of the alleles in the population are the delta allele
1. What is the percentage of the gamma allele in the population?
According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.
In the same way, the sum of genotypic frequencies equals 1, this is
p² + 2pq + q² = 1
Being
p the dominant allelic frequency, q the recessive allelic frequency, p²the homozygous dominant genotypic frequency q² the homozygous recessive genotypic frequency 2pq the heterozygous genotypic frequencyAccording to the sum of the allelic frequencies
p + q = 1
1 equals 100%
100% ------ 1
60%------0.6
40%------0.4
The percentage of gamma allele in the population is 40%.
2. what is the expected frequency of the population that is homozygous gamma?
The genotypic frequencies, F, after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive).
F(gamma)= p²= 0.4²=0.16 =16%
F(delta)= q²= 0.6²=0.36 = 36%
F (gamma-delta) = 2xp2q= 2 x 0.4 x 0.6 = 0.48 = 48%
3. 20% of the population is homozygous gama (gamma gamma), 65% heterozygous (gamma delta) and 10% homozygous delta (delta delta) and 5% of the population is a previously undescribed genotype - zeta zeta (homozygous zeta). What can you conclude about evolution in the population and why? If evolution is occurring, which mechanism(s) would be responsible?
20% gamma-gamma
10% delta-delta
65% gamma-delta
5% zeta-zeta
This population has different genotypic frequencies with respect to the population in southern GA:
The gamma genotypic frequency is a little bit higher in the isolated population (16% vs 20%)
The delta genotypic frequency is considerably lower in the isolated population (36% vs 10%)
The heterozygotic genotypic frequency is also higher in the isolated population (18% vs 64%)
It appeared a new phenotype in the isolated population, probably due to a mutation in one of the genes. We can assume that this is a new mutation because its frequency is still low (5%).
Maybe, the mutation occurred in an individual of the isolated population, and with time, this mutation increased its frequency, up to a point of being phenotypically visible. This could be a case of a bottleneck example.
The founder effect is a special case of genetic drift, where a few organisms of one population settles down in a new area carrying the genes of the original population.
Genetic drift is the random change in the allelic frequency in a population, from one generation to the other. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time, and eventually, some alleles get lost, while some other might get set.
Founder effect refers to the consequences that occur from the origin of a new population that derives from a small number of founder individuals that come from an ancestral bigger population. This small group shows poor genetic variation and a high possibility of expressing a peculiar allelic composition. Some mutation might occur and it can accumulate in time.
Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: Sensory information from proprioceptors about joint and muscle positions are carried to the brain by the: anterolateral system (spinothalamic tracts). vestibulospinal tract. reticulospinal tract. spinocerebellar tracts.
Answer:
Spinocerebellar tracts.
Explanation:
Spinocerebellar tracts are afferent neurons that transmit proprioceptive information from the peripheral nervous system ( muscles and joints propricetors) to the cerebellum. It originated from the spinal cord and end at the cerebellum. It carry unconscious proprioceptive sensory information from the muscles, organs to the cerebellum.
Where do sperm mature?
O A. Epididymis
O B. Urethra
O c. Seminiferous tubules
O D. Vas deferens
Answer:
A.
Explanation:
Sperm migrate from the seminiferous tubules to the epididymis.
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities
such as moving muscles. Explain the energy transformation in this process.
ОА
Chemical energy from broken bonds is transformed into mechanical energy for muscles.
ОВ.
Mechanical energy from broken bonds is transformed into chemical energy for muscles.
OC. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
OD Heat energy from broken bonds is transformed into electrical energy for muscles.
Reset
Next
Answer:
OA
Explanation:
Chemical energy refers to the energy that is released with reactions involving chemicals. Cellular respiration takes glucose(a five carbon sugar) and breaks it down using glycolysis, then makes ATP(adenisine-triphosphate)(an essential chemical to the energy of life) using the krebs cycle and the electron transport train. This is all to get a surplus ATP, which is a useable CHEMICAL ENERGY source. This energy can be diverted to any system in the body, including the muscular system. Then, the muscles are used MECHANICALLY(look at the types of muscle levers in anatomy) to acheive work, thanks to the CHEMICAL ENERGY produced in cellular respiration. Thus, the answer in OA.
Why are fats considered as high energy compounds?
What is the function of mRNA?
What is the general formula for amino acids?
Answer:
1. Fats contain mostly C-H bonds, it has less oxygen therefore making it a high energy compound
2. mRNA plays a vital role in protein synthesis. It's a single stranded RNA molecule that contains genetic information that can be taken outside the nucleus (unlike DNA which cannot leave the nucleus). Its created during transcrption, and is used during translation to create proteins
3. (Look at image)
1. The organic molecules that contain esters of fatty acids and a mixture of compounds are called fats. They provide energy to the body for functioning. They provide slow energy but the most efficient energy.
The amount of calories supplied by fats is twice as compared to carbohydrates and proteins. The excess of fats is stored in the body for future purposes.
2. mRNA is a type of RNA and plays a vital role in the process of translation. It is a single-stranded molecule that contains genetic information transcripted from DNA and is transported out from the nucleus into the cytoplasm.
The main function of mRNA is in protein synthesis. It helps in the formation of amino acid sequence that undergoes modification to form proteins.
3. The general formula of amino acid is [tex]\rm R-CH(NH_{2})-COOH[/tex].
The side chains of different amino acids vary accordingly. The structure consists of a carboxylic group along with an amino group and an organic side chain.
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State three economic importance of mucor
Answer:
Mucor velutinosus and Mucor ellisoideus both infect humans. Mucor indicus is a mold that is actually economically valuable. It's used to produce ethanol, and has a large array of sugars it can use as a food source. Mucor indicus is also used as fish feed and may be a valuable tool to clean up oil spills.
hope it helps : D
Explanation:
The three economic importance of mucor are:
Production of industrial enzymesProduction of organic acidsBioremediationMucor species are used to produce a variety of industrial enzymes, including amylases, proteases, and lipases. These enzymes are used in a wide range of industries, including the food, beverage, and textile industries. Mucor species are also used to produce organic acids, such as citric acid, gluconic acid, and fumaric acid.
These acids are used in a variety of products, including soft drinks, pharmaceuticals, and food additives. Mucor species can be used to bioremediate contaminated soil and water. They can degrade a variety of pollutants, including petroleum hydrocarbons, pesticides, and heavy metals.
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You are hiking in a forest and come upon a mysterious plant, which you determine is either a lycophyte sporophyte or a pterophyte sporophyte. Which of the following would be most helpful in determining the correct classification of the plant?
A) whether or not it has true leaves
B) whether it has microphylls or megaphylls
C) whether or not it has seeds
Answer: choice A
Explanation:
The main difference between pterophytes and lycophytes is the presence of true leaves(pteropytes) and lychophylls(lychophytes). Having lycophylls is a synapomorphy for the lychophytes.
Neither of these clades have seeds.
Explain the link between climate change and globalization.
Answer:
La globalización hace más vulnerable la economía al cambio climático. La susceptibilidad de la red económica global al estrés por calor de los trabajadores se ha duplicado en la última década, según concluye un nuevo estudio publicado en la revista 'Science Avances'
Explanation:
According to the calendar, it has been about 14 days since the beginning of the last lunar
cycle. Usually, the moon is bright white, but today a dark red moon hangs in the night sky.
What are you witnessing?
A. a northern light
B. a solar eclipse
C. a lunar perihelion
D. a lunar eclipse
Which of these conditions doesn’t not contribute to the weathering of rock on earth’s surface
Answer:
The correct answer is
C. Constant high pressure
Explanation:
Constant high pressure is not a factor that causes weathering on the earth surface.
Temperature, air and water affects how a rock changes through time. They have the capacity to cause physical disintegration and chemical decomposition of rocks.
Hope this helps!
- Quinn <3
After a polypeptide chain has been synthesized, certain amino acids in the peptide may become modified. For each modified amino acid, identify the standard amino acid from which it is derived. Enter the unabbreviated name of the standard amino acid.
Answer:
Lysine
Explanation:
Lysine is a unabbreviated name of amino acid. It is used in biosynthesis of proteins. It contains [tex]\alpha[/tex]-amino group and [tex]\alpha[/tex]-carboxylic acid group which has formula is C6H14N2O2. Lysine is also considered as building block of amino acid. It is used for treating cold sores and can be applied directly to the skin.
Viruses reproduce by .
the virus attaches itself to the host cell and inserts it's genetic material into it. then the host cell spreads the viruses genetic material which will result in spreading the virus.
01:50:51
A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how
the cell could be classified?
The cell is prokaryotic her
has DNA
The cell is a plant cell as animal cells do not have chloroplasts
Answer:
The answer is D.) The cell is eukaryotic because it has chloroplasts.
Question 1
2 pts
The bond that forms between two glucose molecules are called
1. Peptide bonds
2. Ester bonds
3. Phosphodiester bonds
4. Glycosidic bonds
5. Hydrogen bonds
Answer:
Glycosidic Bonds
Explanation:
Glycosidic Bonds are a type of covelant bond that form between two or more 5 carbon sugar macro-molecules(like glucose). Hydrogen bonds are an attraction between hydrogen atoms, not a real sharing or trading of electrons, as seen with ionic and covelant bonds, while they are essestial to life in water, they generally do not have a strong effect in the building of macromolecules. Therefore, that is incorrect. Phosphodiester, ester, and peptide bonds all occur between different macro-molecules, none of which include glucose(5 carbon sugar). Therefore, the answer is #4.
a particular gene can have two forms, called alleles. which statement best describes the difference between the dominant allele and the recessive allele?
(a)only the recessive allele is expressed when both alleles ate inherited.
(b)the recessive allele can be expressed only if it moves to a different chromosome.
(c)only the dominant allele is expressed when both alleles are inherited.
(d)the dominant allele can be expressed only if two homologous chromosomes have it.
Answer:
The answer is D I'm pretty sure
List the functions of kinases and cyclins, and describe how they interact to cause cells to move through the cell cycle. Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
The provided question is incomplete as drag and drop box or required image is not available, however, the correct image of drag drop box is attached with the answer:
Answer:
Kinases are catalysts or enzyme that regulates the organic action of proteins by adding phosphate groups and cause the conformation change to a dormant to a functioning type of the protein.
Cyclins bind to CDK or cyclin dependent kinases to regulate by switching on and off the progression of the cell through cell cycle. At the G2 mitosis border , a CDK 1 combines with another cyclin ( B) , phosphorylation (adding of phosphate group) occurs bringing about a series of changes in the nuclear membrane via cytoskeleton, caldesmon and histone H1. CDK 4 binds to cyclin D , moving cells from G1 to S.
What type of molecules are antigens?
There are _______ different amino acids used to make proteins, and different condones code for different amino acids.
Answer: there are only 20 different amino acids but 64 possible codons
Explanation: