Only a fraction of the genes in a cell are expressed at any one time. The variety of gene expression profiles characteristic of different cell types arise because these cells have distinct sets of transcription regulators
Hope this helped you
Describe the polar regions. Help please!
Answer:
Polar region, area around the North Pole or the South Pole.The northern polar region consists mainly of floating and pack ice, 7–10 feet (2–3 m) thick, floating on the Arctic Ocean and surrounded by land masses.
Climate - long cold winters, with annual temperatures mostly below freezing.
Soil - the soil is covered in ice throughout the year.
Plants - hundreds of species of moss, algae and lichen survive the harsh conditions of the Polar biome.
why is blood pressure an example of negative feedback?
Answer:
Regulation of blood pressure is an example of negative feedback. ... If blood pressure is too high, the heart rate decreases as the blood vessels increase in diameter ( vasodilation ), while the kidneys retain less water. These changes would cause the blood pressure to return to its normal range.
Explanation:
2. What does it mean if a micrograph is "false-colored?"
It means that the object has color created by the computer since electron microscopes really see in black and white. ... They usually range in sizes between 5-50 micrometers, they are surrounded by a cell membrane, and usually can't be seen without a microscope.
A micrograph is said to be false-colored when there is color created by the
computer involved in the printing of the picture.
A micrograph is a pictorial representation of objects seen under a
microscope. The view of objects under microscope is usually in black and
white color. The micrograph is therefore meant to also be in black and white.
This is the reason why when there is a color in the micrograph, it is referred
to as being false-colored.
Read more on https://brainly.com/question/25309587
1) What is the monomer (building block) of a protein?
Amino Acids
Nucleotides
Legos
Answer:
Amino acids
Explanation:
What property of water allows the
oceans’ water to store carbon dioxide?
Answer:
The difference in pCO 2 is related to the amount of carbon that is converted from CO 2 gas to other nongaseous carbon species in the sea water, like bicarbonate and carbonate ions. This so-called "buffer capacity" is what allows the oceans to hold so much carbon.
Explanation:
An organism that has different alleles - one dominate and one recessive it's called
Answer:
An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.
Explanation:
what significant role does dna play in formation and development of an organism
Answer:
DNA contains the instructions needed for an organism to develop, survive, and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Explanation:
DNA contains the instructions needed for an organism to develop, survive, and reproduce.
What is DNA?
Cells' capacity to store, retrieve, and translate the genetic instructions necessary to create and maintain a live organism is essential to life.
This genetic material is transmitted from one generation of an organism to the next through the reproductive cells of the organism and from one cell to its daughter cells during cell division.
Every living cell contains these instructions as part of its genes, which are the information-containing components that define the traits of a species as a whole and of the individuals within it.
Therefore, DNA contains the instructions needed for an organism to develop, survive, and reproduce.
To learn more about DNA, refer to the link:
https://brainly.com/question/264225
#SPJ2
We inherit of
our genes from
our mothers and
1/2 from our
fathers.
A. 1/3
B. 1/4
C. 1/2
D. 1/6
Will give brainliest to whom is correct
Answer:
What i the question here? if you are asking how much of our genes we inheret from our mothers then it would be c
Explanation:
two halves is a whole. we also have 26 chromosomes from each parent.
The red line in this diagram represents: *
How were Redi’s and Pasteur’s experiments different?
A. Redi studied broth, but Pasteur tested meat.
B. Pasteur studied flies, but Redi tested meat.
C. Pasteur tested for microorganisms, but Redi studied larger organisms.
D. Redi tested for microorganisms, but Pasteur studied larger organisms.
Answer:
C. Pasteur tested for microorganisms, but Redi studied larger organisms. that is the correct answer i promise
Explanation:
which of the following is not an acquired trait of a human
Answer:
Acquired traits develop during life (not in your DNA) and answers are below:
Explanation:
Examples:
-Things you learned
(riding a bike, reading, writing, painting, drawing, cooking, school subjects, etc.)
-Things that happened to you
(short hair, broken bone, plastic surgery, dyed hair, etc.)
Hope this helps!
hurry due in five min plz
Answer:
It's either D or B, I'm not really sure
Explanation:
In 1972, EPA issued a cancellation order for DDT based on its adverse environmental effects, such as those to wildlife, as well as its potential human health risks. Since then, studies have continued, and a relationship between DDT exposure and reproductive effects in humans is suspected, based on studies in animals.
Human health effects from DDT at low environmental doses are unknown. Following exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures. Laboratory animal studies showed effects on the liver and reproduction. DDT is considered a possible human carcinogen.
Do we use all brains all the time? If so why?
Answer:
Yes because we use our brain to write, read, draw, drive a car, or pretty much anything we do. Even sleeping our brain is working. But at a slower pace. The brain never stops working.
Explanation:
where do veins always go
Answer:
Capillaries connect the arteries to veins. The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.
Explanation:
Common covalent bonds include
MgO
KF
CH4
Answer:
CH₄
Explanation:
The four C-H bonds are covalent;
The C atom shares electrons with each of the four H atoms.
Simple organic molecules combine to make larger molecules. Which statement best describes the disruption of the bond between two carbohydrate monomers? (3 points) Dehydration synthesis will remove water molecules, forcing the bond to break. Energy will be stored in the bond between monomers through hydrolysis. The bond in the complex carbohydrate will be broken due to enzyme activity. The helium and hydrogen atoms in the backbone of the sugar will be broken.
Answer:
The correct answer is - The bond in the complex carbohydrate will be broken due to enzyme activity
Explanation:
Carbohydrates are macromolecules formed by the combined simple monomer subunits to make a larger subunit or chain of molecules. Dehydration synthesis is the process required for the build-up of these larger molecules and for this they require energy.
The hydrolysis reaction is used to break the hydrogen bond of these monomer backbones by the addition of water which releases energy. Complex carbohydrates are digested or the bonds present in between their monomers are broken down due to the activity of the series of the enzymatic reaction.
Answer: The bond in the complex carbohydrate will be broken due to enzyme activity.
help please it’s due today and i dunno what to do.......
Answer:
I don't know if I understood that completely, but I think that there will be more liquid water if the temperature gets higher.
Explanation:
We currently have the ice caps, those are just ice. If they melt then they will be a liquid. there might be more gas, but it is mostly ice right now.
why does paper bread tableyellow?
Answer:
yes
Explanation:
i did this and got it right.
The burning and cutting of the trees will affect the carbon cycle by adding___________ to the atmosphere in the case of burning the trees and by not removing enough __________ from the atmosphere in the case of cuting the trees.
Answer:
The burning and cutting of the trees will affect the carbon cycle by adding carbon dioxide to the atmosphere, in the case of burning the trees and by not removing enough carbon dioxide from the atmosphere in the case of cuting the trees.
Explanation:
When burning and cutting down trees, these actions significantly alter the carbon cycle, adding carbon dioxide in the case of burning trees and preventing said carbon dioxide from being eliminated when cutting down the trees that, through the process of photosynthesis, are responsible for cleaning the atmosphere transforming carbon dioxide into oxygen.
Where these processes lead to carbon cycle stagnation in the short and long term.
In guinea pigs, the allele for a smooth coat (S) is dominant over the allele for a rough coat (s). Explain how you could find out whether a guinea pig with a smooth coat is a hybrid or a purebred.
Answer:
Explanation:
First of all you need to have ss because this is recessive.
Secondly there is 2 option for Dominant one
It could be Ss or SS so if you wanna know what is what you need to use recessive gen
S- ss if all genes are hybrid dominant one would be SS if some genes aren’t hybrid dominant one would be Ss
do all planets move in the same way and the same speed
Answer:
no
the speed is affected by the mass of the planets and venus moves in the opposite direction to the other plants
Which of the following scenarios does NOT illustrate a danger bats can pose to miners?
A. Bats can swarm, causing miners to fall off equipment.
B. Bats can release feces that have mold spores, causing miners to contract respiratory diseases.
C. Bats can attack, causing miners to contract rabies.
D. Bats can communicate by echolocation, causing miners to lose their hearing.
Answer:
C. Bats can attack, causing miners to contract rabies.
Explanation:
Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.
What is food web?Food web has been defined as the natural way of the interconnection of the food chain that has been represented by the help of graphs and it has been shown that in the ecological community who eats whom. The food web has been also known as the consumer consuming system. The main advantage of the food web has the organism present on the top or the organisms who belongs to the higher trophic level can provided food or feed the organisms from lower trophic level or from other food chain.
The permanent food web has been increased due to the presence of large or complex food web. There are mainly three steps in the food web or food chain and they are producers, consumers, as well as decomposer. The producer belongs to the trophic level, the consumers belongs to the second and third trophic level, and the decomposers belongs to fourth and fifth trophic level.
Since there are more number of species they have more oppurtunity on which ones to eat because food webs with many species (biodiverse) are more stronger than those with few species.
Therefore, Scenarios that does not illustrate a danger bats can pose to miners is bats can attack, causing miners to contract rabies.Thus, option C is correct.
Learn more about food web on:
https://brainly.com/question/2233704
#SPJ5
. Which statement accurately describes the energy needs for photosynthesis and cellular respiration?
After examining the picture, which of the following formations is most likely the youngest?
bed B
bed D
d-i-k-e M
bed C
Answer: The real answer is Bed D
bed d is wrong! the answer is dk M
cholesterol is synthesized by all animal cells and is an essential structural component of animal cell's membrane cholesterol is the most common steroid and mainly synthesized in the liver cholesterol also serves as a processor for several important biological compounds including all except insulin ,vitamin D, bile salts , testosterone.
Answer:
Aug 11, 2017 — Vitamin D3 is produced in the skin from 7-dehydrocholesterol by UV irradiation, 1,25(OH)2D reduces 1,25(OH)2D levels in cells primarily by Animals null for calbindin 9k (the major calbindin in mammalian abnormal vitamin D and/or calcium metabolism in some but not all of these patients (24-26). Cholesterol, a waxy substance that is present in blood plasma and in all animal tissues. it is a primary component of the membrane that surrounds each cell, and it is synthesizes bile acids, steroid hormones, and vitamin D. Cholesterol are essential energy sources and structural components of all life
16. Which phenomenan shows the effect of light dispersion? *
What two electron carrying particles ("batteries!") does the electron transport chain use to get the energy it needs to
make ATP?
Answer:
The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP.
Explanation:
Answer:
The electron transport chain can convert the energy from one glucose molecule's worth of FADH2 and NADH + H+ into as many as 34 ATP
Explanation:
The process of forming ATP from the electron transport chain is known as oxidative phosphorylation. Electrons carried by NADH + H+ and FADH2 are transferred to oxygen via a series of electron carriers, and ATPs are formed. Three ATPs are formed from each NADH + H+, and two ATPs are formed for each FADH2 in eukaryotes.
A plant can have green (G) or yellow (g) leaves. it can also have a long (k) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk what possible gametes can the plant produce?
Answer:
gk, gK
Explanation:
GK, Gk, gk, gK are the possible gametes can the plant produce. So, the correct option is A.
What are Gametes?Male and female germ cells are created in the anther and ovule of flowering plants, respectively. Pollen grains, which are discharged from the anthers at anthesis, contain male gametes.
The generative cell relocates through the pollen tube formed by the tube cell during pollen germination to reach the ovary's base where it will be fertilized. The generative cell splits into two male gametes as it moves through the pollen tube.
In the given example, the following gametes could be created while creating a Punnett square:
=> GK (Green and long) (Green and long)
=> Gk (Green and short) (Green and short)
=> gK (Yellow and long) (Yellow and long)
=> gk (Yellow and short) (Yellow and short)
Therefore, the correct option is A.
Learn more about Gametes, here:
https://brainly.com/question/29882202
#SPJ7
Your question is incomplete, most probably the complete question is :
A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross of a plant with a genotype GGKk. What possible gametes can the plant produce?
A) GK, Gk, gk, gK
B) GG, Kk
C) GK, Gk
D) GK, gk
1. What caused the Lake Missoula
Answer:
The lake was the result of an ice dam on the Clark Fork caused by the southern encroachment of a finger of the Cordilleran Ice Sheet into the Idaho Panhandle. It was the largest ice-dammed lake known to have occurred.
Hope this helps:)
will mark brainliest
hahah you don't know this? can't imagine being that dumb must suck.