1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergeinik [125]
3 years ago
8

In horses, the allele for a black coat (B) is dominant over the allele for a brown coat (b). A cross between a black horse and a

brown horse produces a brown foal. Is the black horse a homozygous or heterozygous for coat color? BB x bb or Bb x bb

Biology
1 answer:
GaryK [48]3 years ago
4 0

Answer:

Bb X bb

Explanation:

  • It is given that the allele B for the black coat is dominant over allele b for a brown coat.
  • A dominant allele always leads to the expression of the dominant trait in the heterozygous condition. 
  • When a black and brown horse is crossed as given in the question and the result is a brown foal, then the genotype of the brown foal must be bb as the brown coat is a recessive trait. 
  • Since each parent contributes one allele each for a given gene, the black horse must have b allele, and hence must be heterozygous Bb.
  • The cross is shown in the punnett square.

You might be interested in
During cellular respiration the largest amount of ATP is generated in
Degger [83]
The electron transport chain of the cellular respiration process produces maximum ATP.

There are three parts of cellular respiration:

Glycolysis, which produces 2 ATP.
Krebs cycle, which does not produce any ATP. It produces only the raw materials for ATP production.
Oxidative phosphorylation, which involves the electron transport chain that produces maximum ATP. It takes one NADH molecule via Channel 1 to produce 2.5 ATP and one FADH2 molecule via channel 2 to produce 1.5 ATP, for a total of 34 ATP.
3 0
3 years ago
39. What makes up proteins and what bonds them together?
icang [17]
Proteins are biological polymers constructed from amino acids joined together to form peptides. These peptide subunits may bond with other peptides to form more complex structures. Multiple types of chemical bonds hold proteins together and bind them to other molecules. Take a closer look at the chemical bonds responsible for protein structure.
8 0
3 years ago
What is one key function of the organelle for an animal cell membrane ​
mart [117]

Answer:

Hmm.

Explanation:

The plasma membrane is the organelle that encapsulates the contents of the cell. Apart from encapsulating cell contents, the plasma membrane also plays a vital role in regulating the movement of substances in and out of the cell.

5 0
3 years ago
What is Clubfoot and how you get it?
mrs_skeptik [129]

Clubfoot describes a range of foot abnormalities usually present at birth (congenital) in which your baby's foot is twisted out of shape or position. In clubfoot, the tissues connecting the muscles to the bone (tendons) are shorter than usual.

7 0
2 years ago
Arguably, the way prokaryotic operons are structured has evolutionary advantages. Based on our discussions in class, briefly des
Naddik [55]

Answer:

Advantage of gene expression in prokaryotes is it occurs faster than in eukaryotes because  transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Whereas disadvantage of gene expression in prokaryotes is that there is no post translational modification and low expression of genes.

Explanation:

Prokaryotic organisms are single-celled organisms that lack a cell nucleus, and their DNA therefore floats freely in the cell cytoplasm. To synthesize a protein, the processes of transcription and translation occur almost simultaneously. When the resulting protein is no longer needed, transcription stops. As a result, the primary method to control what type of protein and how much of each protein is expressed in a prokaryotic cell is the regulation of DNA transcription. All of the subsequent steps occur automatically. When more protein is required, more transcription occurs. Therefore, in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. whereas in eukaryotes, the DNA is contained inside the cell’s nucleus and there it is transcribed into RNA. The newly synthesized RNA is then transported out of the nucleus into the cytoplasm, where ribosomes translate the RNA into protein. The processes of transcription and translation are physically separated by the nuclear membrane; transcription occurs only within the nucleus, and translation occurs only outside the nucleus in the cytoplasm.

6 0
3 years ago
Other questions:
  • Brain size (adjusted for body size) is ________ correlated with intelligence. The speed of taking in perceptual information is _
    13·1 answer
  • What is the entire object shown in the image?
    14·2 answers
  • A train travels 95 kilometers in 3 hours and then 55 kilometers in 2 hours. What is it’s average speed?
    11·1 answer
  • In which kingdoms are all organisms multicellular?
    12·2 answers
  • What is known as the brain of cell
    10·2 answers
  • What is cytokinesis​
    10·1 answer
  • In certain plants, tall is dominant to short. A member of your class accidentally did not record the genotype of the parent plan
    9·2 answers
  • Materials and waste that are removed from a cell with the use of a vesicle is called ?
    10·2 answers
  • PLEASE HURRY! After Dante catches the flu virus, he feels very tired and loses his appetite. His body aches and he gets a high f
    11·2 answers
  • In comparison to the composition of carbohydrates and fats, which element found in proteins makes them unique?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!