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In humans, the gene for red blood corpus...

In humans, the gene for red blood corpuscle shape (alleles elliptical E and normal e) is linked to the gene for Rhesus blood (alleles Rhesus positive R and Rhesus negative r). A person with alleles E and R on one chromosome and e and r on its homologous partner will definitely produce gametes with the genotypes

A

Ee and Rr.

B

Ee and er

C

ER and Rr

D

ER and er.

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To solve the problem regarding the gamete formation in humans with respect to the given alleles for red blood corpuscle shape and Rhesus blood type, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Alleles**: - The alleles for red blood corpuscle shape are: - E (elliptical shape) - e (normal shape) - The alleles for Rhesus blood type are: - R (Rhesus positive) - r (Rhesus negative) 2. **Determine the Genotype of the Individual**: - The individual has the genotype E/R on one chromosome and e/r on its homologous chromosome. This can be represented as: - Chromosome 1: E R - Chromosome 2: e r 3. **Understand Gamete Formation**: - During gamete formation (meiosis), the chromosomes will segregate, and each gamete will receive one allele from each gene pair. 4. **List Possible Gametes**: - The possible combinations of alleles that can be formed from the genotype E/R and e/r are: - From the first chromosome (E, R) and the second chromosome (e, r), we can form the following combinations: - ER (from E and R) - Er (from E and r) - eR (from e and R) - er (from e and r) 5. **Final Gamete Genotypes**: - Therefore, the gametes produced will have the following genotypes: - ER - Er - eR - er ### Final Answer: The person will definitely produce gametes with the genotypes: ER, Er, eR, and er. ---
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