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HELP ASAP! 50 POINTS!! WILL MARK CORRECT ANSWER BRAINLIEST
DUE TODAY!!

1) A black BB (codominant) bird mates with a red RR (codominant) bird. What will the offspring be? Complete the Punnett square.


a. What is the probability of having a black bird?


b. What is the probability of having a red bird?


c. What is the probability of having a black and red bird?

HELP ASAP 50 POINTS WILL MARK CORRECT ANSWER BRAINLIEST DUE TODAY 1 A black BB codominant bird mates with a red RR codominant bird What will the offspring be Co class=

Respuesta :

Answer:

1) They wil be BR (100% of them)

Punnett square:  

     R.     R

B. BR.   BR.

B. BR.  BR

a) there is a 0% chance

b) there is a 0% chance

c) there is a 100% chance

Explanation:

a) because on the punnet square we got no "BB"

b) because on the punnett square we got no "RR"

c) because on the punnet square all of the crosses resulted in "BR", hence 100%

nguyenminhnguyet82

Answer:

a. 0% black birds

b. 0% red birds.

c. 100% of the offspring birds are black and red ones

Explanation:

A black bird (BB) produces only B gamete, while a red bird (RR) produces only R gamete.

As B and R alleles are codominant, three genotypes of BB, RR, and BR have three phenotypes, namely black, red, and black&red feather, respectively.

The Punnette square in this case can be seen in the image.

All of the offspring birds have BR genotype; therefore, they are all black&red birds.

Ver imagen nguyenminhnguyet82

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