1. Consider a cross between a pea plant that is heterozygous for round seeds and
ID: 17837 • Letter: 1
Question
1. Consider a cross between a pea plant that is heterozygous for round seeds and a pea plant that has wrinkled seeds. The allele for round seeds (R) is dominant over that for wrinkled seeds (r). Using a Punnett square, determine the genotypes of the offspring. 2. In Guinea pigs, the brown coat (B) is a dominant over the cream-coloured coat (b), and straight hair (H) is dominant over curly hair (h). Using a Punnett square, complete the cross between a heterozygous brown, curly-haired individual and a cream-coloured, homozygous straight-haired individual. State the parent genotypes, gametes, and the F1 Phenotypes and genotypes.Explanation / Answer
1. Parents: Heterozygous round (Rr) X Wrinkled (rr)
Gamets: (R) (r) X (r)
Offsprings: Rr (Round) and rr ( Wrinkled )
gamete
( r)
(R)
Rr (Round)
(r)
rr( wrinkled)
2. Coat color in gunea pig"
Parents: Heterozygous brown and curly haired Bbhh X Cream colored straight haired bbhh
Bbhh X bbHH
gamets: ( Bh) (bh) X bH
Punnet square:
bH
Bh
BbHh
( Heterozygous brown & straight )
bh
bbHh
(Homozyzous cream and staright )
gamete
( r)
(R)
Rr (Round)
(r)
rr( wrinkled)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.