Imagine that you have two black dogs. One is black because it carries two dominant genes for black (BB). The other is black beca
use it carries one dominant gene for black and one recessive gene for the recessive color liver (Bb). Use a Punnett square to predict the phenotype and genotype for the offspring of a cross between these two dogs.
2 answers:
Answer:
The correct answer would be:
- Genotype: BB and Bb
- Phenotype: Black color
Black is a dominant trait as it is expressed in heterozygous condition (Bb).
The genotype of one parent is BB. Thus, it would produce only one type of gamete that is, B.
The genotype of other parent is Bb. It would produce two types of gametes; B and b.
The cross will result in the production of puppies with two types of genotypes BB and Bb.
However, the phenotype of all the puppies will be black color as black is a dominant trait.
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Answer:
is 26.25 N
Explanation:
Given that: = 20 N,
= 17 N.
This implies that the two forces are acting at right angle to each other. Thus applying the Pythagoras theorem, we have;
=
=
=
=
= 26.2488
= 26.25 N
The net force is 26.25 N.