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8 Cards in this Set
- Front
- Back
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the genetic makeup of an organism is called its _____ and the physical traits of an organism are called its ___________ |
genotype, phenotype |
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which of the Mendel's laws is represented by each statement? A. Alleles of each homologous pair separate independently during gamete formation B. alleles segregate during gamete formation; fertilization creates pairs of alleles once again |
A. is the law of independent assortment B. statement B is law of segregation |
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Edward was found to be heterogeneous (Ss) for the sickle-cell trait. the alleles represented by the letters S and s are |
on homologous chromosome |
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whether an allele is dominant or recessive depends on |
whether it or another allele determines the phenotype when both are present |
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two fruit files with eyes of the usual red color are crosses, and their offspring are as follows: 77 red-eyed males, 71 ruby-eyed males, 152 red-eyed females. the gene that controls whether eyes are red or ruby is _______ and the allele for ruby is _______ |
sex-linked, recessive |
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all the off spring of the white hen and a black rooster are gray. the simplest explanation for this patter of inheritance is |
incomplete dominance |
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a man who has B blood and a woman who has A blood type could have children of which of the following phenotype? |
A, B, AB, or O |
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Duchenne muscular dystrophy is sex-linked recessive disorder characterized by a progressive loss of muscle tissue. neither Ruby not Carla has Duchenne muscular dystrophy, but their first son does have it. if the couple has a second child, what is the probability that he or she will also have this disease? |
1/4 (1/2 chances the child will be male times 1/2 chance that he will inherit the X carrying the disease allele) |
