How are chromosomes and genes alike?(1 point)
Responses
They are both found on chromatids.
They are both found on chromatids.
They both contain genetic material.
They both contain genetic material.
They both encode a single protein.
They both encode a single protein.
They are both part of DNA.
They are both part of DNA.
In pea plants, the allele for round peas, R, is dominant over the allele for wrinkled peas, r. What is the phenotype of a pea plant with genotype Rr?(1 point)
Responses
some round and some wrinkled
some round and some wrinkled
slightly wrinkled
slightly wrinkled
wrinkled
wrinkled
round
round
What determines a trait of an organism?(1 point)
Responses
the number of dominant alleles
the number of dominant alleles
the number of copies of the gene
the number of copies of the gene
its phenotype
its phenotype
the combination of its alleles
the combination of its alleles
Which statement is accurate about dominant alleles?(1 point)
Responses
They are indicated by lowercase letters.
They are indicated by lowercase letters.
They are expressed only when a recessive allele is not present.
They are expressed only when a recessive allele is not present.
They are expressed whenever present.
They are expressed whenever present.
They result in the trait of shortness in pea plants.
They are expressed whenever present.
Consider the following scenario:
In a certain dog breed, the allele B for a black coat is dominant, and the allele b for a spotted coat is recessive. What genotypes for this dog breed would lead to a spotted phenotype?
(1 point)
Responses
bb
bb
BB
BB
BB and bb
BB and bb
Bb
bb
Which statement is true of all proteins?(1 point)
Responses
They are created by mutations in DNA.
They are created by mutations in DNA.
They carry oxygen in human blood.
They carry oxygen in human blood.
Their main function is to cause mutations.
Their main function is to cause mutations.
Their structure is related to their function.