Cystic fibrosis (CF) occurs with a frequency of about 1/2500 Caucasian newborns and is inherited as an autosomal recessive. A woman had an older sister die from complications of this disease. CF is not present among relatives of her husband. Both the woman and her husband have normal phenotypes. What is the chance this couple will have a CF child?

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Is biotechnology more dangerous to other gene transfer technologies breeding?

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People who can roll their tongues contain a dominant allele for tongue rolling. If people do not contain the tongue rolling gene, then they cannot roll their tongue no matter how hard they try. Consider the following situation: If a homozygous dominant tongue roller mates with a homozygous recessive non-tongue roller, then what is the probability of the offspring inheriting the tongue rolling gene?

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In pea plants, tall plants are dominant to short plants. If two heterozygous tall plants are crossed, what percent of the offspring will probably be short?

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what is Sickle Cell Anemia ?

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Why does RNA have 5 bases and DNA has only 4?

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what are Athletic genes?

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Is There any way in which a currently living could be mutated in reality to such a large scale as to which others could see the mutation, such as a third arm?

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The village of Oblong has 400 normally-shaped residents. Transferrin is an iron carrier found in blood, and electrophoretic variation of this protein is determined by an autosomal codominant system. The citizens of Oblong were typed for their transferrin complements. The distribution of transferrin phenotypes was: 100 CC, 100 CD, and 200 DD. What is the frequency of the C allele?

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A certain man has the genotype AaBb; genes A and B are on one chromosome and a and b are on its homologue. List the gametes that could be formed with crossing over and with no crossing over

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what is Genetic Base for a Species ?

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what is the recently discovered sps of monkey in arunachalpradesh?

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