Question

У человека карий глаз(K) доминирует над голубым(k) , а спасобность оучше владеть правой рукой( N) - над левой (n) . голубоглазый гетерозиготный правша женился на гетерощиготной карезлазой левше. каких детей можно ожидать от такого брака?

Answer 1

К - карий
к - голоубой
N - правша
n - левша

мужская особь - ккNn 
женская ососбь - Kknn 

kk + Kk = Kk + Kk + kk +kk
Nn+nn  = Nn+Nn+nn+nn

lдети : голубоглазые левши, голубоглазые правши, кареглазые правши, кареглазые леви
 

Answer 2

Генотип мужа: kkNn
Генотип жены: Kknn
Возможные генотипы детей: kknn - голубоглазый левша
kkNn - голубоглазый гетерозиготный правша
KkNn - гетерозиготный кареглазый правша
Kknn - гетерозиготный кареглазый левша

Answer 3

Understanding the Genetic Traits in the Marriage

In the given scenario, the individual with brown eyes (K) is dominant over the individual with blue eyes (k). Additionally, the ability to better control the right hand (N) is dominant over the left hand (n). The blue-eyed individual is heterozygous for eye color (carries both K and k alleles), and the right-handed individual is also heterozygous for hand dominance (carries both N and n alleles).

Predicting the Offspring's Traits

When predicting the traits of the offspring, we can use Punnett squares to visualize the possible combinations of alleles.

For eye color: - The brown-eyed individual is homozygous dominant (KK). - The blue-eyed individual is heterozygous (Kk).

The possible genotypes for their offspring are: - 50% chance of being brown-eyed (Kk) - 50% chance of being blue-eyed (kk)

For hand dominance: - The right-handed individual is heterozygous (Nn). - The left-handed individual is also heterozygous (Nn).

The possible genotypes for their offspring are: - 25% chance of being left-handed (nn) - 75% chance of being right-handed (NN or Nn)

Conclusion

From this marriage, the couple can expect offspring with a variety of eye colors, including both brown-eyed and blue-eyed children. Additionally, the majority of their children are likely to be right-handed, with a smaller chance of being left-handed.