Sensory neurons are types of brain cells that convert the stimuli coming from the senses (hearing, touch, smell, taste, and sight) into information that would allow the brain to interpret it as a sensation. For example, they convert the messages from the optical nerve if the object is of a light color or not.
The results that have been produced from the improved agricultural practices are the following: increased biodiversity, increased productivity, and increased profits. Improved agricultural practices aim to produce food for consumers that are safe and wholesome. If these agricultural practices are improved and applied, there will be an increase in biodiversity as well as increased in productivity. If there is an increase in production, there is an increase in profits.
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.
