Answer:
1/4
Explanation:
Given that the F2 cross produces offspring according to the expected 9:3:3:1 ratio.
YyRr X YyRr:
Let us break the dihybrid cross into individual monohybrid crosses.
Yy X Yy :
Y y
Y YY Yy
y Yy yy
2/4 or 1/2 of the offspring are heterozygous for the trait.
Similarly, in Rr X Rr cross, 1/2 of the offspring are heterozygous for the trait.
Together, 1/2 * 1/2 = 1/4 of F2 plants are expected to be heterozygous for both traits.
Answer:natural selection Genetic direction and gene flow
Explanation: I was just Researching this topic
Researching this topic

The Correct choice is C. <u>Anaphlactic</u> <u>shock</u>
Disease caused by massive release of histamine is Anaphlactic shock.
Answer:32
Explanation:
U would multiply 8×4=32 so 8 cells produce 32 daughter cells