Question

r r
r rr rr
r rr rr
r-smooth seeds, r-wrinkled seeds
the f1 generation will be homozygous.
the entire f1 generation will be hybrid.
the entire generation will have smooth seeds
the entire generation will have wrinkled seeds.
50% of the generation will have wrinkled seeds.

Explanation:

1. The Punnett square shows a cross between a parent with genotype RR (smooth seeds, dominant) and a parent with genotype rr (wrinkled seeds, recessive). All offspring have the genotype Rr.
2. A genotype with two different alleles (Rr) is defined as hybrid (heterozygous), so the F1 generation is entirely hybrid.
3. The R (smooth) allele is dominant, so all Rr offspring will express the smooth seed phenotype, even with one recessive r allele.
4. The other options are incorrect: the offspring are not homozygous (they have Rr, not RR or rr), they will not all have wrinkled seeds, and 0% (not 50%) have wrinkled seeds.

Answer:

• The entire F1 generation will be hybrid.
• The entire generation will have smooth seeds.