Question in English:
A female carries a recessive lethal gene (l) on one of her X chromosomes, and a normal dominant allele (L) on the other. What is the sex ratio to be expected in this woman's dependency if she marries a normal man?
Answer:
2/3 females
1/3 males
Explanation:
Females have two X chromosomes (XX) and males have an X and a Y chromosome (XY).
The genotype of the female is XLXl. The genotype of the male is XLY, since he is normal.
The possible genotypes are:
<u> XL Xl</u>
<u>XL</u> <em>XLXL XLXl</em>
<u>Y</u> <em>XLY </em><em>XlY</em>
<em />
All female offspring will be normal as they will always have one normal copy of the X chromosome from their father.
50% of the male offspring will be normal, but 50% will inherit the lethal gene from their mother.
Because the allele is lethal, that means XlY males will not be born.
That means 2/3 of the children will be females, and 1/3 will be males.
Cooks add salt to water in order to further flavor their food via osmotic behaviors.
Answer:
Some examples of living things are organisms such as plants, animals, fungi, and bacteria. Organisms interact with the living and nonliving things in their ecosystem to survive. ... These living things interact with the nonliving things around them such as sunlight, temperature, water, and soil
<span>Bean microcosm set-up; uncovers unmistakably the individuals from the microcosm, not at all like the sea-going set-up that indicated obscured objects. Bean microcosm likewise demonstrate that the quantities of different species stay steady or even increment. This suggests there is the little rivalry for the rare assets though the is a sharp decrease of a few animal categories in dull microcosm inferring hardened rivalry for resources.Both set-ups are broadened by various microorganisms that have colonized specific regions of the microcosm. The microorganism is existing together, however, there are instances of declining quantities of a few animal types in both set-ups.</span>
