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3 years ago

A thoroughbred racehorse could have at most _________ alleles of the same gene.

1 answer:

8 0

A thoroughbred racehorse could have at most two alleles of the same gene. An allele is a variant or an alternative form of a gene that is located at a specific position on a specific chromosome. Humans are called diploid organisms since they have two alleles at each genetic locus, with one allele inherited from each parent.

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coldgirl [10]

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3 years ago

the efficiency of aerobic metabolism is greater than that of anaerobic metabolism even though much more energy is released in ae

Nitella [24]

Compared to anaerobic metabolism, aerobic metabolism retains a lot additional energy in the manner of ATP.

<h3>What is the straightforward meaning of metabolism?</h3>

the alterations in an organism's or a cell's chemistry. These modifications generate the ingredients and energy that cells and organisms require to develop, procreate, and maintain health.

<h3>Does weight change with metabolism?</h3>

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1 year ago

What part of Isaac Newton’s childhood led him to become so defensive and hostile toward any criticism of his work?

ELEN [110]

Answer: Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.

Explanation:

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3 years ago

Read 2 more answers

What is an organism's phenotype?

slamgirl [31]

B. The organisms physical traits.
A phenotype refers to all observable traits of an organisms as a result of its genotype.

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3 years ago

Read 2 more answers

In a species of tropical fish, e colorful orange end black variety called montezuma occurs. When two montezu- mas, are crossed,

chubhunter [2.5K]

Answer:

a. Montezuma phenotype is given by a dominant allele.

b. 8 MmFf : Montezuma and normal fins (1/2) and 8 mmFf: green body and normal fins (1/2)

c. 9/16 Montezuma and normal fin, 3/16 Montezuma and ruffled fin, 3/16 Green body and normal fin, 1/16 Green body and ruffled fin.

Explanation:

a. Montezuma is a single-gene trait, and according to the description, after a cross of two heterozygous fishes offspring showed these phenotypic ratios:

- 2/3 montezuma

- 1/3 wild-type

If parentals are heterozygous and the vast majority of the progeny has the montezuma phenotype, it is probable that montezuma phenotype is related to a dominant allele. If M is montezuma allele and m wild-type, this cross can be seen in the first Punnett Square, and the progeny is:

- 1/4 MM Montezuma

- 2/4 Mm Montezuma

- 1/4 mm wild-type

These proportions are the same that reported ones. Therefore, montezuma is inherited in a dominant way.

b. The fin phenotype is given by F/f gene, where F: normal fin, f: ruffled fin. If a montezuma fish homozygous for normal fins (MmFF) is crossed with a green, ruffled fish (mmff), the progeny will be:

- 8 MmFf : Montezuma and normal fins (1/2)

- 8 mmFf: green body and normal fins (1/2)

This cross is explained in the Punnett Square 2.

c. Montezuma fishes from part b are MmFf. They have montezuma body color and normal fins.

If two individuals MmFf are crossed, it will produce the following offspring (as it is shown in the final Punnett Square):

- 9/16 Montezuma and normal fin

- 3/16 Montezuma and ruffled fin

- 3/16 Green body and normal fin

- 1/16 Green body and ruffled fin.

3 0

3 years ago