You cross a diploid plant that is homozygous dominant with a plant that is homoz

Question

You cross a diploid plant that is homozygous dominant with a plant that is homozygous recessive in respect to one gene. What proportion of offspring would be homozygous? Just enter a numerical value and no symbols (if you think the answer is 67%, enter 0.67)

Which stage of meiosis explains how alleles behave according to Mendel's Second Law?

Exactly 50% of the F1 of a cross between two parental plants are heterozygous. What could be true about the P-generation? Note: Please make sure you understand the meaning of the word "could" before answering this question.

Two parents have a child with hemophilia. What must be true about the parents of the child? Please make sure you understand the meaning of the word "must" before attempting this question.

If a man with hemophilia has a child with a woman who is a carrier for hemophilia, what is the probability that the child will have hemophilia? Enter the value as a decimal (e.g. 80% = 0.8

What proportion of male children born to a man with hemophilia and a woman who is a carrier of the hemophilia allele would be hemophiliac? Enter your answer as a decimal (E.g. 90%=0.9)

How many copies of the A,B,O blood group determining alleles do you possess?

If four children were born to parents who both had blood group AB, how many would you expect to be heterozygous?

Explanation / Answer

1) The answer is 0.50

2) In anaphase I of meiosis I allele behave according to Mendel's second law.

3)P generation have both homozygous and heterozygous.

4) Since Y chromosome does not carry any gene only X chromosome express haemophilia therefore XX is carrier of the disease this means female is the carrier.

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