Hemophilia is an x-linked recessive gene that causes a blood disorder. What are the chances that the daughter of a normal man and a heterozygous woman will have hemophilia? 

Assume it is possible to remove continuous cores of rock from Earth that are 3,000 feet long and contain fossils. What would the theory of evolution by natural selection predict about the fossils found in such cores as they are examined from top to bottom?

 The X-linked varieties of congenital stationary night blindness (CSNB) causes myopia (near sightedness), impaired night vision, reduced visual acuity, and other symptoms. A normal man (whose father has CSNB) marries a normal woman (whose father also has CSNB). If you were only looking at male offspring, what is the chance that a SON will have CSNB? (For the purposes of this question, if there are 2 of the same allele letter, place alleles with a linked trait second.) chance that a SON will have CSNB.

Dandelions in a lawn that is mowed have short flower stalks, whereas those in a field have tall flower stocks. This illustrates:

A farmer noticed that two of her cotton plants produce cotton with a slight greenish hue. By repeatedly crossing the greenish plants, she has produced a variety of deep-green cotton without the use of any dyes. This is an example of:

Based on your understanding of mitosis, explain the function of this process, where it takes place, and the result of this type of cell division.

What is the ratio of expected phenotypes in the offspring produced by the cross Aa × Aa? Assume complete dominance for the trait. 

If the allele for inflated pea pods (I) is dominant to the allele for constricted pods (i), then the cross Ii x ii is expected to produce: 

All of the following may be found in a DNA nucleotide EXCEPT: 

Patau Syndrome is a chromosomal condition known as Trisomy 13 and is caused by a translocation. Surviving children with this condition have several developmental disabilities, polydactyly, and multiple organ defects among other issues. Explain what Trisomy 13 means, what a translocation is, and when it might occur during meiosis.