Question

1. a group of scientists took a gray body, normal wings drosophila, and a black body, vestigial wings drosophila. they crossed these two types of drosophila. the tables list the type of offspring produced.

• gray - bodied with normal wings
• black - bodied with vestigial wings
• gray - bodied with vestigial wings
• black - bodied with normal wings

based on the experiment, what can likely be claimed about the process of sexual reproduction in drosophila?
a. it causes genetic variations in offspring.
b. it produces offspring identical to each other.
c. it produces only offspring that are identical to the parent.
d. it produces a high number of offspring, like asexual reproduction.

Explanation:

The experiment involves crossing two drosophila with different traits (gray body/normal wings and black body/vestigial wings) and observing offspring with various trait combinations. Sexual reproduction involves the combination of genetic material from two parents, leading to genetic variation. Option A states it causes genetic variations, which matches the observation of diverse offspring. Option B is incorrect as offspring aren't identical. Option C is wrong because sexual reproduction doesn't produce offspring identical to parents (unlike asexual). Option D is incorrect as sexual reproduction typically produces fewer offspring than asexual, and the experiment doesn't support this claim.

Answer:

A. It causes genetic variations in offspring.