In the 1860s Gregor Mendel performed numerous dihybrid crosses between pea plants. Dihybrid crosses involve the study of the inheritance patterns related to two different traits. In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BbFf x bbff cross would be expected to be heterozygous for both traits

Answers

Answer 1

Answer:

25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

Explanation:

Available data:

the allele for black fur (B) is dominant over the allele for brown fur (b)the allele for short fur (F) is dominant over the allele for long fur (f)Cross: BbFf x bbff

Parentals)            BbFf      x         bbff

Phenotypes) Black/Short    Brown/Long

Gametes)       BF, Bf, bF, bf      bf, bf, bf, bf

Punnett square)      BF         Bf          bF          bf

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

F1) 4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbFf, expressing Brown and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be Bbff, expressing Black and long fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbff, expressing Brown and Long fur

Answer 2

Answer:

25%

Explanation:

Because i took the test


Related Questions

4 sentences saying the benefit of online delivery

Answers

What are the benefits of online delivery? Well online delivery can actually save you time and money. First of all since we are in a pandemic, its safer too get your packages to ship to your house or apartment. If you are working long shifts it saves you time then going out to purchase them. You can also choose when you want it to be delivered.

lol have a nice day

Answer:

Ordering online can often be more efficient than going out to a store to pick up and buy items. Its very easy to use as the ordering process is easier and you don't need to worry about it being out of stock and having to drive to different stores. You can do it in the comfort of your own home, so you don't have to drive around and wait in long lines to get the items you want or need. Online shopping can often be cheaper than instore prices, making it a better option for saving if your looking for that.

Explanation:

Explain the relationship between producers, consumers, and decomposers in the process of energy transfer in a food web.

Answers

Answer: Producers make food from the sun. Consumers eat producers or other consumers. Decomposers break down dead material and recycle it so it can be used by producers to make food.

Explanation:

When graphing data, what will make it
more precise?
A. using larger units
B. making it cover most of the graph
C. using a bar graph
D. connecting all the points plotted

Answers

Answer:

A. using larger units

Explanation:

Graphs can be used to display large amounts of numerical data and to portray the relationships between numerical values of different variables

When graphing data, what will make it more precise would be to ensure that it covers most of the space on the graph sheet. The correct option would, therefore, be B.

Using larger units may result in inaccurate plotting of small variablesNot all data can be represented as a bar graphConnecting all the points plotted has no bearing on the precision of a graph

Making your graph to cover, at least, 2/3 of the graph space will ensure that your plots are visible and lead to a more precise graph.

More on graph plotting can be found here: https://brainly.com/question/23553731

HELP ASAP I REALLY COULD USE YOUR HELP

Answers

Answer:

gg

Explanation:

because both are the same recessive trait it would be 25% of offspring would get the trait

Explain the difference between oxidation and digestion.

Answers

The one that is loosing electron is oxidation process and the one that is gaining electron is reduction.

b) Reduction reaction occur at cathode while oxidation reaction occur at Anode.

Explanation:

The main difference between the reduction and oxidation process is based on gaining and loosing of electron.

Reduction and oxidation both occur simultaneously. one is loosing electron and other is gaining. The one that is loosing electron is oxidation process and the one that is gaining electron is reduction.

B) Reduction reaction occur at cathode while oxidation reaction occur at Anode

For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. 4 1 5 0 2

Answers

Answer:

For each glucose that enters glycolysis,  2 acetyl CoA enter the citric acid cycle.

Explanation:

SYNTHESIS OF 2Acetyl CoA -:

The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.

Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of [tex]2CO_2[/tex] (waste product).

2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.          

[tex]Glucose[/tex] → [tex]2pyruvate[/tex] → [tex]2Acetyl CoA[/tex]

Linked reaction is also known as oxidative -dicarboxylation.

Hence,  2 Acetyl CoA is required to enter citric acid cycle.  

which of the following element is not present in proteins

Answers

Answer:

Protein: a compound made of amino acids. Each amino acid is made of carbon, hydrogen, oxygen, and nitrogen. Most proteins also include sulfur.

Which means the only choice left is helium

i hope this is the answer you are looking for

What is one characteristic animal have in common with a mushroom?

Answers

Answer:  Animals and fungi share a common ancestor and branched away from plants at some point about 1.1 billion years ago.

plants and fungi both have cell walls.

Fungi are more like animals because they are heterotrophs, as opposed to autotrophs, like plants, that make their own food.

How can you call something "alive"? All living things share certain characteristics.

Part A: List the 9 characteristics of life. (1 point)

Part B: Choose 3 of the characteristics of life above. Give an example of each that describes how that characteristic contributes to the organism's survival. (3 points)

Answers

Explanation:

A - response to stimuli, reproduction, respiration (breathing), growth and development, regulation, homeostasis, energy processing, evolution,excretion.

there's more but, I've only mentioned 9.

B -

response to stimuli - by responding to stimuli the organism indicates the presence of nervous system and response to maintain survival.reproduction - by reproducing the organism is promoting the species' survival by maintaining it's presence for generations. respiration / breathing - this characteristic indicates gas exchange in an organism which, suggests metabolic reactions in the organism that provides it with necessary energy.

hope this helps. :)

Does anyone know why Mt. Vesuvius erupted? Was it natural or human caused?

Answers

Answer:

Explanation:

Natural

What are two different ways that
weathering can happen?
Chemically & Physically(mechanically)
erosion & physically (mechanically)
chemically & deposition

Answers

Answer:

Chemically & Physically(mechanically)

Explanation:

Weathering is the wearing away of rock found at the surface of the earth. There are different ways weathering can occur and they include;

1. Mechanical weathering: This is the breakdown of rock into bits or fragments. Physical factors such as water can lead to this breakdown. When water falls into the pores and cracks of rocks, pressure can be created that will eventually result in the breakdown of these rocks.

2. Chemical weathering: This type of weathering causes a change in the physical makeup of the rock. The new form of rock created is more prone to erosion. Temperature is factor that can speed up chemical weathering.

What is the role of bitechnology in the environment

Answers

Answer:

i already answer but here you go again

it addresses environmental problems, such as the removal of pollution, renewable energy generation or biomass production, by exploiting biological processes.

Explanation:

Which shows the correct path of how energy flows in a food chain?
A
producer, consumer, predator, decomposer

B
symbiosis, producer, prey, decomposer

C
consumer, predator, carnivore, herbivore

D
niche, consumer, decomposer, chlorophyll

Answers

Answer:

A there needs to be a producer, consumer, and predator, and decomposer.

I hope this helped!!

I think it’s A because It always starts with a primary producer

ASAP PLEASE HELP!!!!
When rock in the interior of the planet is heated to high enough temperatures, what occurs? Select the best answer from the choices below.
a it gets hotter and sinks into a trench
b the rock melts to create magma
c it forms new mountains underwater
d it causes glaciers to melt

Answers

Answer:

B !

Explanation:

I'm basing this off of a lesson I took two years ago, but the answer is B! The interior of Earth is rumored to be filled with magma as a way to have convection currents in itself, and to move the tectonic plates/ create the tectonic plates, if I remember correctly.

If i'm wrong I can still prove why it's not the other choices.

It's not A becuase when rock gets hotter, it rises, and when it cools, it sinks.

it's not C becuase it said "interior of the planet", which it may be referencing somewhere having to do to below the crust. as well, you need to cool rocks as to make it solid, not heated up rocks. but even then, mountains are made by the plates.

it's not D becuase glaciers are affected by climate change and occurrences the biosphere, not the interior of the planet.

QUICK!! The diagram below shows the molecular structure of glucose. Glucose is a
simple carbohydrate that is important to living organisms. a. Describe the
primary function of glucose in cells. b. Simple sugars like glucose can be used to
make larger organic molecules. Identify one larger molecule made from simple
sugars (monosaccharides).

Answers

Glucose is used by the mitochondria of the cell. It is used along with oxygen to make ATP or adenosine triphosphate a high energy molecule cells use to carry out actions. Sucrose is a disaccharide formed from glucose and fructose through a glycosidic bond.

*What two kinds of molecules would be used to support evolution ?

Answers

Answer: Multiple types of evidence support the theory of evolution: Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features).

Explanation:

PLZ HELP 25 POINTS!!!

Give an example of how Eubacteria can be harmful. Explain.

Answers

Answer: However, bacteria can also cause disease. Examples of bacterial diseases include tetanus, syphilis, and food poisoning. Bacteria may spread directly from one person to another. For example, they can spread through touching, coughing, or sneezing. Some Eubacteria can induce serious diseases such as tuberculosis, meningitis, anthrax, leprosy, cholera and tetanus. Antibiotics disrupt normal functioning of bacterial ribosomes or synthesis of the cell wall and prevent further multiplication of bacteria in the body.

Explanation:

1081_Cellular En
How are cellular respiration and photosynthesis related, in terms of energy?
The energy captured in photosynthesis is used to power cellular respiration.
The energy transformed in cellular respiration is used to power photosynthesis.
Photosynthesis and respiration performt the same task in terms of energy transformation.
Energy is not involved in either photosynthesis or cellular respiration.
ОО

Answers

Answer:

D, or the last one stating that energy is not involved.

Explanation:

You can look it up to check, but D is the right answer.

What happens when the sun emits more energy than normal

Answers

Answer: When the Sun emits more amount of energy than normal, "Solar flares and sunspots" occur, increasing temperature of Earth. Explanation: The Earth's temperature is governed by many factors

HOPE THIS HELPS

Please answer correctly. I really need this. Its not a joke.
Thank you
1. What conditions might cause the most water and sediment to be collected at the bottom of the stream table?

Answers

Answer: Steep, high velocity, no silting. The high water speed picks up silt from the bottom instead of letting it settle to the bottom. When the land gets level like often happens at the mouth of rivers where the water spreads out and slows down, silt settles to the bottom and you could get a wide, shallow delta.

(Put in own words this is from online hope it helps)

Which of the following is not a line of evolutionary evidence supported by empirical evidence?
a. How similar DNA is between organisms
b. The length of the organism’s life
c. Where fossils are found
d. How similar the organisms were as embryos

Answers

Answer:c where fossils are found

Explanation:

Where fossils are found  is not a line of evolutionary evidence supported by empirical evidence. Therefore, option C is correct.

What are fossils ?

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.

Shells, bones, animal or microbe imprints in stone, exoskeletons, items preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils.

The majority of fossils are created when a living thing (such as an animal or plant) dies and is swiftly buried by sediment (such as mud, sand or volcanic ash).

Thus, option C is correct.

To learn more about the fossils, follow the link;

https://brainly.com/question/6867325

#SPJ6

5. Predict long-term changes to the surface landscape of the area if too much water is drawn from the ground and the water table drops further.

Answers

there will be no water for the pump station, stream, and the groundwater is going to be very low.

Which graph best represents directional selection?

Answers

The answer would be B for the directional selection graph

Answer:

Graph B

edge⬇️

Which of the following statements about the population in this graph is true?

It is increasing slowly.

It is increasing rapidly.

Answers

Answer:

It is increasing rapidly.

here is your answer

don't forget to give some hearts

Explanation:

The statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.

What is a Population?

A population may be defined as a group of individuals belonging to the same species living in the same area at a definite time. The size, density, birth rate, death rate, and abundance, are some characteristics of a population. These characteristics of the population are known as demographic factors.

According to the context of this question, the axis of the graph is increasing very rapidly. It determines the rate of population towards rapid growth. The growth of any population depends on various factors such as space, food, resources, mating partners, availability, etc.

Therefore, the statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.

To learn more about Population, refer to the link:

https://brainly.com/question/24067944

#SPJ2

A student remarks that it is a good thing that humans discovered how to use industrial processes to fix nitrogen because this ensures that the nitrogen cycle can remain intact if nitrogen-fixing bacteria ever go extinct. Evaluate the accuracy of this statement. A. The statement is accurate because humans are able to fix nitrogen on a large scale that rivals the rate of the process carried out by bacteria. B. The statement is inaccurate because the nitrogen cycle does not depend on nitrogen-fixing bacteria, and their loss would not cause a problem. C. The statement is inaccurate because the product of nitrogen fixation through industrial processes does not have the same biological properties as the product of nitrogen fixation by bacteria. D. The statement is inaccurate because humans would not be able to distribute the product of nitrogen fixation from industrial processes in the same way that bacteria are able to distribute it globally now.

Answers

Answer:

D. The statement is inaccurate because humans would not be able to distribute the product of nitrogen fixation from industrial processes in the same way that bacteria are able to distribute it globally now.

Explanation:

Nitrogen fixing bacteria has the responsibility in nature to trap and fix atmospheric nitrogen in ecosystems. They are very important components of the nitrogen cycle and play an important role in maintaining the balance  of nutrients in nature.

If humans discover industrial processes to fix nitrogen, the process will be unsustainable in the long run if nitrogen-fixing bacteria ever go extinct because humans would not be able to distribute the product of nitrogen fixation from industrial processes in the same way that bacteria are able to distribute it globally now across several ecosystems all over the world.

The Earth rotates counterclockwise on its axis. Because of this, in which direction does the Moon appear to move across the sky?

A. from north to south

B. from south to north

C. from west to east

D. from east to west

Answers

Answer:

East To West

Explanation:

Help me please! Help​

Answers

Answer:

football field

Explanation:

If the acceleration graph is a flat line, what does that tell you about the motion? Why?

Answers

It tells us that the motion is constant or stationary

7. Compare and contrast the way carbon is used in respiration and photosynthesis
.
8. How does carbon get into the ocean?

9. What is carbon used for when it is in the ocean?


THESE ARE MY LAST QUESTIONS IF YOU KNOW PLS GIVE ME THE ANSWERRRRRRRASSSSSS
T-T am baka

Answers

BAKKKAAAAAAAAAAAAAAAAAAA

3. Please rank the following topics from most to least interesting: (Fire Ecology - (FE), Noise Pollution and Mitigation Strategies (NP), College Majors and Careers in the Environment (CC), Great Pacific Garbage Patch (GP), EcoTourism

1.
2.
3.
4.
5.
6. ​

Answers

1.FE
2.NP
3.CC
4.EcoTourism
5.GP
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