A) Describe the relationships among genes, DNA, and traits. (1 point)
Genes code for traits, which are composed of DNA.
Traits are made of genes, which are composed of DNA.
Traits are determined by genes, which are composed of DNA.
Traits determine the DNA in genes.
5 answers
Traits are determined by genes, which are composed of DNA.
A) 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)
50%
75%
25%
100%
short-tailed mouse, what are the chances of having offspring with short tails? (1 point)
50%
75%
25%
100%
The chances of having offspring with short tails in this scenario is 50%.
A) What is meant by a phenotype ratio in a Punnett square? (1 point)
the number of genes that are possible in offspring
the fraction of possible offspring that contain a certain allele in their genes
the number of alleles in possible offspring
the fraction of possible offspring that can be observed to have a trait
the number of genes that are possible in offspring
the fraction of possible offspring that contain a certain allele in their genes
the number of alleles in possible offspring
the fraction of possible offspring that can be observed to have a trait
A phenotype ratio in a Punnett square refers to the fraction of possible offspring that can be observed to have a certain trait.
1 answer