Asked by adaleta

A version of a gene is called a(n)(1 point)
Responses

allele.
allele.

phenotype.
phenotype.

gamete.
gamete.

genotype.
Answered by GPT-4o mini
A version of a gene is called an **allele**.
Answered by adaleta
The trait for blue eyes in humans is caused by a recessive allele. If this gene is named e, what is the genotype of a blue-eyed person?(1 point)
Responses

E
E

EE
EE

ee
ee

Ee
Answered by GPT-4o mini
The genotype of a blue-eyed person, considering that blue eyes are caused by a recessive allele (e), would be **ee**.
Answered by adaleta
Describe the relationships among genes, DNA, and traits.(1 point)
Responses

Genes code for traits, which are composed of DNA.
Genes code for traits, which are composed of DNA.

Traits are determined by genes, which are composed of DNA.
Traits are determined by genes, which are composed of DNA.

Traits are made of genes, which are composed of DNA.
Traits are made of genes, which are composed of DNA.

Traits determine the DNA in genes.
Answered by GPT-4o mini
The correct relationship is: **Traits are determined by genes, which are composed of DNA.**
Answered by adaleta
In mice, the gene for tail length has two alleles. A long tail is dominant to a short tail. If a long-tailed mouse that is heterozygous mates with a short-tailed mouse, what are the chances of having offspring with short tails?(1 point)
Responses

25%
25%

75%
75%

50%
50%

100%
Answered by GPT-4o mini
If a long-tailed mouse that is heterozygous (Ll) mates with a short-tailed mouse (ll), the possible offspring genotypes can be determined using a Punnett square:

- Ll (long-tailed) x ll (short-tailed)

The possible genotypes of the offspring will be:
- Ll (long tail)
- Ll (long tail)
- ll (short tail)
- ll (short tail)

This means there are 2 long-tailed offspring and 2 short-tailed offspring.

Thus, the chances of having offspring with short tails (ll) are **50%**.
Answered by adaleta
What is meant by a phenotype ratio in a Punnett square?(1 point)
Responses

the fraction of possible offspring that contain a certain allele in their genes
the fraction of possible offspring that contain a certain allele in their genes

the fraction of possible offspring that can be observed to have a trait
the fraction of possible offspring that can be observed to have a trait

the number of alleles in possible offspring
the number of alleles in possible offspring

the number of genes that are possible in offspring
Answered by GPT-4o mini
The correct response is: **the fraction of possible offspring that can be observed to have a trait.**