Katrinah056
contestada

(HELP!) Look at the Punnett square obtained by the monohybrid cross between two rabbits. 


R r

R RR Rr

r Rr rr

Here, R represents the allele for black hair and  r represents the allele for white hair. Both rabbits crossed had genotype Rr.  What will be the phenotypic ratio for the observable monohybrid crosses? 

a.  1:1:1:1 

b.  2:2 

c.  2:1:1 

d.  3:1

Respuesta :

i think it's c. 2:1:1
mickymike92

Assuming that R is dominant over r, the phenotypic ratio of offspring will be 3:1 such that there are 3 black-haired and 1 white-haired rabbits.

What is a monohybrid cross?

A monohybrid cross a cross between two parents having alleles for only one gene.

The monohybrid cross between two rabbits that has the genotype Rr will produce the following offspring:

  • Rr × Rr = RR, Rr, Rr, rr

Assuming R is dominant over r, the phenotypic ratio of offspring will be 3:1

Therefore, based on the fact that R is dominant over r,

the phenotypic ratio of offspring will be 3:1

Learn more about monohybrid cross at: https://brainly.com/question/2314668

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