Answer:
If mother 1 is a carrier of hemophilia, it is likely that her son would in fact have hemophilia while the son of mother 2 does not. Mother 1 would have the genotype XᴴXʰ, meaning she has one recessive allele for hemophilia, while the father would have the genotype XᴴY, and would neither be afflicted with hemophilia nor carry it. If you do a punnett square, it shows that the son of mother 1 would have a 50% chance of having hemophilia, since he wouldn't have a second X chromosome with a dominant allele to mask the recessive hemophilia allele. Also, if mother 2 has the homozygous dominant genotype XᴴXᴴ despite the father having hemophilia and the genotype XʰY, a punnett square for this couple proves that their son would have a 0% chance of having hemophilia. Therefore, it is very likely that their sons were not switched at birth and the correct answer is D: The fact that the father in couple 2 has hemophilia would not predispose his son to hemophilia. The first couple has no valid claim. Hope this helped!
B. They are caused by mutations of the X chromosome
A report is more detailed and goes further into what you are talking about while a poster is an overview or summary of the topic you are doing.
Answer: It is the carbon dioxide assimilation or carbon fixation reactions or the Calvin cycle.
Explanation: Carbon dioxide assimilation reactions are light independent reactions of photosynthesis. They do not require light to occur, thus they occur in the dark. The carbon dioxide assimilation reactions are driven by ATP and NADPH that are produced in the light dependent reactions of photosynthesis. The carbon dioxide assimilation reactions are the second stage of photosynthesis. It involves the incorporation of three molecules of carbon dioxide into three molecules of ribulose 1,5-bisphosphate in a cyclic pathway known as the Calvin cycle. In these reactions, triose phosphates are produced which serve as precursors for synthesis of glucose and other related substances such as starch.
