| A | B |
|---|
| In DNA, what can be said about the amount of thymine (T) as compared to the amount of adenine (A) and the amount of cytosine (C) as compared to guanine (G)? | There is an equal amount of thyamine and adenine; there is an equal amount of cytosine as guanine. |
| What type of mutation has occurred if a DNA sequence that initially reads ATTGCCGAT now reads ATTGCCAT after being copied? | deletion |
| What type of mutation has occurred if a DNA sequence that initially reads ATTGCCGAT now reads ATTGCCAGAT after being copied? | insertion |
| When does a mutation occur? | when there is a change in the order of the bases in an organism’s DNA |
| A pea plant has alleles for green and yellow seed colors. According to Mendel’s law of segregation of characteristics, what must a gamete of the plant carry? | only one allele |
| A pea plant has white flowers and yellow seeds. What does Mendel’s law of independent assortment say about these traits? | Inheritance of one trait does not affect the other. |
| A poodle with black fur (BB) is crossed with a poodle with brown fur (bb). Using a Punnett square, what is the probability that the offspring will be black? | 100% |
| All characteristics are determined by what? | a minimum of 2 genes |
| Alleles for different traits are distributed to sex cells & offspring independently of one another. This is an example of which of Mendel’s laws? | independent assortment |
| An organism with the genotype Dd is crossed with an organism of the same genotype. Using a Punnett square, what is the RATIO of offspring displaying the dominant allele to offspring displaying the recessive allele? | 3:1 |
| During the formation of gametes, the two alleles responsible for a trait separate from each other. Alleles for a trait are then “recombined” at fertilization, producing the genotype for the traits of the offspring. This is an example of which of Mendel’s laws? | segregation |
