Answer:
a: 1/4
b: 1/2
c: 1/4
d: 0
Explanation:
Since the wife had a color-blind father (X^cY), she should be a carrier for the disease. Her genotype would be "X^cX". Fathers do not transmit the X-linked disorders to their sons, so the genotype of the husband is "XY".
a. The probability that the couple's first child will be a normal son: 1/4
b. The probability that the couple's first child will be a normal daughter: 1/2
c. The probability that the couple's first child will be a color-blind son: 1/4
d. The probability that the couple's first child will be a color-blind daughter: Zero
<span>A hormone doesn't determine the gender. Chromosomes do. But the female hormones are estrogen and progesterone and the male is testosterone.</span>
Answer: The first blank is “does not”
The second blank is “reduces”
The third blank is “stays the same”
Answer:
1/4.
Explanation:
The autosomal dominant trait means that the trait is visible in homozygous dominant and in heterozygous condition. The X linked recessive trait will be pass down from mothers to their sons and daughters will show the trait in homozygous recessive condition only.
The man is achandroplastic dwarf ( Aa) with normal vision (XY ) is married with woman that has normal height (aa) with color blind (XhXh). They have a daughter who is dwarf ( Aa). The probability of being dwarf can be calculated by the cross Aa × aa. The offspring are Aa, Aa, aa, aa. Means 1/2 are the probability of being hetterozygous for achondroplastic . The vision probability is calculated by cross XY and XhXHh. The probability that female is heterozygous is 1/2.
So, the heterozygous probability for both trait is 1/2× 1/2 = 1/4.
we risk losing due to climate change is food. Thus option C is correct.
<h3>What are the impact of climate change on species ?</h3>
Climate is the crucial factor for all living organism, as it determine whether an organism is going to survive or not.
Global warming is one of the major factor resulted from release of green house gases.
It leads to habitat loss, change the migration capabilities, alter the competitive relationships.
The fate of the species completely depend on climate change, those who are able to move new area with new climatic condition they will meet their physical, biological, and climatic needs.
Thus option C is correct.
Learn more about climate change , here:
brainly.com/question/12346202
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