What happens to the ground in tundra during the summer?
1 answer:
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Explanation:
As you can see in the picture below, this is a dihybrid cross with a twist.
We can accomplish that mutually parentages are heterozygotes for both characters because the genotypes are
9 unicorns with curly tails (shown in green)
3 with straight tails (shown in red)
3 curly tales trait carriers with no tail (shown in dark blue)
1 straight tail trait carriers with no tail ( shown in light blue)
If this was an ordinary case of the dihybrid cross, we would get a 9:3:3:1 phenotype ratio.
However, since the first trait, the presence of the tail, is affecting the other trait, the trait texture, the ratio is altered.
of the offspring (genotypes tt C_ and tt SS) has no tail, therefore we cannot observe the texture of the tail (some of the tailless individuals have Curly alleles -blue squares marked with green, some of them have Straight alleles -blue square marked with red ).
Therefore, the altered ratio is curly tails,
straight tales,
tailless
Answer:
a. all purple flowers in the F1 generation.
Explanation:
According to the given information, the allele for purple flower color (lets assume P) is dominant over while the allele of flower color (p). When two pure breeding purple (PP) and white flowered (pp) plants are crossed, the F1 would have all "purple flowered progeny with genotype Pp".
According to the Mendel's law of dominance, the hybrid genotype exhibits the dominant phenotype. Here, the allele "P" is dominant over allele "p". Hence, the genotype "Pp" would exhibit purple flower color and all the F1 progeny would have purple flowers.
