Explanation:
The results are explained if the trait blue eyes is dominant (B) over non-blue (b) and the dominant allele B is lethal in homozygous individuals.
<u>The possible genotypes and phenotypes are:</u>
- Homozygous dominant (BB): lethal
- Heterozygous (Bb): blue eyes
- Homozygous recessive (bb): non-blue eyes
When blue (Bb) is crossed with non-blue (bb) the resulting offspring is 1/2 blue (Bb) and 1/2 non-blue (bb).
When non-blues interbreed (bb X bb) all progeny is non-blue (bb).
Answer:
this one
Explanation:
the amount of time taken for a longitudinal wave to produce one cycle the number of cycles per second perceived by the human ear.
B- black allele;
b- brown allele;
The parental cross is true-breeding because both the male and the female are homo zygotes, so: BBx bb
The F1 generation will be all black heterozygote: Bb
The F2 generation will be between mice of the F1 generation and they all have the same genotype:Bb xBb
In this cross it would result in:
1/4 of the plants being black homozygote-BB 25%
2/4 of the plants being black heterozygote- Bb- 50%
1/4 of the plants being brown homozygote- bb- 25%
answer: 25%+25%=50% are homozygotes
Answer:
this means the 2 letters in the genotype can not be both lowercase or both uppercase
Explanation:
Therefore a genotype that is heterozygous will always be heterozygous dominant and will look like Bb
The Mitochondria is known as the powerhouse of the cell.
They generate the majority of our adenosine triphosphate (ATP), the energy currency of the cell.