1. Two fruit flies heterozygous for red eye color (Rr) and yellow body color (Yy) are crossed . What is the probability the offspring will be homozygous recessive for eye color and body color? A. 8/16 B. 4/16 C. 1/16 D. 0/16

To determine the probability that the offspring will be homozygous recessive for both eye color and body color, we need to consider the inheritance of each trait separately and then combine the probabilities.1. **Eye Color:** - The genotype for eye color is Rr (heterozygous). - The possible gametes are R and r. - The probability of producing a recessive allele (r) is 1/2.2. **Body Color:** - The genotype for body color is Yy (heterozygous). - The possible gametes are Y and y. - The probability of producing a recessive allele (y) is 1/2.Since the inheritance of eye color and body color are independent events, we can multiply the probabilities of each event occurring together.The probability of an offspring being homozygous recessive for eye color (rr) is .The probability of an offspring being homozygous recessive for body color (yy) is .Therefore, the combined probability of an offspring being homozygous recessive for both traits (rryy) is: So, the probability that the offspring will be homozygous recessive for both eye color and body color is or 4 out of 16.Thus, the correct answer is:B.