A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur. If a homozygous black rabbit is crossed with a heterozygous black rabbit, what phenotypic ratio will occur in the first generation?A.
50% black : 50% grey
B.
100% black : 0% grey
C.
75% black : 25% grey
D.
25% black : 75

Answers

Answer 1
Answer:

Answer:

B.  100% black : 0% grey

Explanation:

If allele for black fur (BB) is dominant over grey fur (bb) and the rabbits can have either of these two colors phenotypically then a cross between a homozygous black rabbit (BB) and heterozygous black rabbit (Bb) will produce all the rabbits with black phenotype.

The cross is shown as under :

Parental         BB        x         Bb

F1                BB      BB       Bb         Bb

Genotypic ratio =>  BB : Bb = 1:1 i.e. 50% homozygous dominants & 50% heterozygous dominants.

Phenotype will be 100% black rabbits and 0% grey rabbits.

Answer 2
Answer:

The answer is; B

If we assume that the allele for black fur is B and that for white fur is b, crossing a homozygous black rabbit with a heterozygous black rabbit, will yield the following results (indicated in the punnet square below);

Genotypically, 50% of the population will be homozygous dominant, while 50% will be heterozygous. However, phenotypically, all offspring will bear black fur because the black fur allele is dominant over the grey allele.


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Explain why it is important
for you to be scientifically
literate

Answers

Answer:

C. Explain to your reader thorougly

Explanation:

scientific litierate

Energy is released from ATP when

Answers

Answer: The correct answer for the blank is-

Energy is released from ATP ( adenosine triphosphate) when high energy phosphoanhydride bond ( present between two phosphate) is broken down or hydrolyzed.

This results in the formation of ADP ( adenosine diphosphate) and Pi ( inorganic phosphate).

Therefore, hydrolysis of ATP releases energy.

Energy is released from ATP when ATP undergoes hydrolysis.

ATP supplies energy for cellular activities by breaking off a phosphate group from its structure.

ATP is produced through the process of cellular respiration where food particles such as glucose are broken down to yield energy in the form of ATP.

Further Explanation

Cellular respiration

  • Cellular respiration is the process of by which living organisms use nutrients or food substances to generate energy in the form of ATP that is required to drive cellular processes.
  • Cellular respiration takes place in an organelle known as mitochondrion which is known as the powerhouse of the cell.
  • Cellular respiration takes place in three stages; glycolysis, Kreb's cycle and electron transport.  
  • Each step of cellular respiration yields ATP with the electron transport chain yielding the most number of ATP molecules, 34 ATP molecules.

ATP

  • ATP is the energy carrier molecule in the cells of living organisms. It is the usable form of energy by the cells in all living forms. Cells use ATP to drive all the cellular activities such as transport, excretion, growth and development, etc.
  • ATP is produced through the process of cellular respiration where food particles such as glucose are broken down to yield energy in the form of ATP.

Hydrolysis of ATP

  • ATP molecule is made up of a nucleotide base adenine attached to three phosphate groups.
  • Energy is contained in the bonds between the phosphates in an ATP molecule which is released when they are broken through the addition of water molecules a process called hydrolysis.
  • ATP powers cellular processes by transferring phosphates group in its structure to other molecules which releases energy required to drive the cellular activities.

Keywords: cellular respiration, ATP, energy  

Learn more about:  

Level: High school  

Subject: Biology  

Topic: Cellular respiration

Sub-topic: Hydrolysis ATP

Australopithecus is an ape that lived in trees, but could walk on two feet. How might fossils from Australopithecus provide evidence for evolution?

Answers

The fossils from Australopithecus provide evidence for evolution because some parts of the bone that contains the DNA of it can be identified as this type of animal. They can be detected through the use of carbon dating devices.

The fossils of Australopithecus could provide evidence for evolution in the sense that DNA in the bones of the ape can serve as evidence for other organisms that exists after.

What is evolution?

Evolution refers to transformation of living things into different forms (now understood as a change in geneticcomposition) by the accumulation of changes over successive generations.

Evolution is a transformational process that takes place over time. Fossils such as bones, shells provide evidence for the evolutionaryrelationships between organisms.

According to this question, Australopithecus is an ape that lived in trees, but could walk on two feet. This means that fossils of Australopithecus could provide evidence for evolution in the sense that DNA in the bones of the ape can serve as evidence for other organisms that exists after.

Learn more about evolution at: brainly.com/question/13492988

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1) Energy is released when _______ is removed from pyruvate.A - Water
B - Carbon dioxide
C - Co-enzyme A
D - None of the above

2) Which of the following is energy that has not yet been used?
A - Potential
B - Kinetic
C - Metabolic
D - All of the above

Answers

1.) C. Co-enzyme A
2.) A- Potential. It has "potential." meaning it's not used yet. 

The bond that forms between two sugar molecules is called a

Answers

The bond that forms between two sugar molecules is called a glycosidic bond.

What is an example of something that moves but is not alive?

Answers

A robot moves but it is not alive.