Question

1. a mutation in a type of butterfly causes some individuals to have a wing color that blends in with tree bark. the image shows a butterfly with the mutation.

based on the image, how is the mutation beneficial to the butterfly?
a the mutation allows the butterfly to adapt to human - made changes in the environment.
b the mutation provides the butterfly with camouflage that increases its survival rate.
c the mutation makes the butterfly more aggressive toward potential predators.
d the mutation causes the butterfly to produce more offspring each breeding season.

1. in mendels pea plant experiments, which trait is expressed only when two identical alleles are present?

a dominant trait
b heterozygous trait
c phenotypic trait
d recessive trait

Explanation:

• Question 28: The mutation gives the butterfly wing color that blends with tree bark. Camouflage helps an organism hide from predators, increasing its survival rate. Option B is correct as it directly relates to the camouflage benefit shown in the image. Options A (human - made changes not indicated), C (no sign of aggression), and D (no mention of offspring production) are incorrect.
• Question 29: In Mendel's experiments, a recessive trait is expressed only when two identical recessive alleles are present. A dominant trait can be expressed with one dominant allele. A heterozygous trait has two different alleles. A phenotypic trait is the physical expression of genes (a general term). So, the answer is D.

Answer:

1. B. The mutation provides the butterfly with camouflage that increases its survival rate.
2. D. recessive trait