Answer:
The answer is 25%.
Explanation:
Hemophilia is a recessive illness that is x-linked.
If the husband has normal clotting ability, that means he has the dominant gene since he has only one X chromosome.
Since there is a probability that their child will have hemophilia, this means that the woman, who has 2 X chromosomes but has normal blood clotting abilities, has one dominant and one recessive hemophilia gene.
The probability that their first child will be a male is 50% and the probability that he will have hemophilia is also 50% since he will only get the Y chromosome from the father and the mother has one dominant and one recessive.
So the probability that their first child will be a son with hemophilia is 25%.
I hope this answer helps.
<span>a. predict the traits of the offspring of genetic crosses.</span>
Answer:
TIME: a single bacterium can multiply to over two million in just seven hours.
WARMTH: the 'danger zone' temperatures at which bacteria grow best are between 5 Celsius and 63 Celsius.
FOOD: like any other living things, germs need food to grow.
WATER: Bacteria need moisture to grow.
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