Your father is heterozygous for the recessive disorder phenylketonuria (PKU). You know your mom
has two "good" alleles. What is the probability that you will have the disorder?
a. 0% but you will have a 50% chance of passing the "bad" allele on to your children
b. 0% and you don't need to worry about passing the "bad" allele on to your children
c. 25% for you and 25% for your children
d. 50% for you and 50% for your children
e. 50% for you and 25% that you'll pass the "bad" allele on to your children
A
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Choose the true statements about pseudogenes.
_____ Premature stop codons can produce pseudogenes. _____ Missense mutations can produce pseudogenes. _____ Pseudogenes have DNA sequences very similar to a functional gene. _____ Pseudogenes result from horizontal gene transfer.
When a European robin orients by the earth’s magnetic field, it is described as _____ directional differences
a. “feeling” b. “seeing” c. “sensing” d. “predicting” e. “assuming”
Microfilaments function in
A) muscle contraction. B) cytoplasmic streaming. C) cell division. D) maintenance of animal cell shape. E) All of the above.
What is graft-versus-host disease?
A) Immune system cells in transplanted bone marrow attack the body of its new host. B) Immune system cells of the host attack the newly transplanted bone marrow and reject it. C) It occurs when tissue from an isograft is rejected. D) It occurs when tissue from a xenograft is rejected. E) It occurs when tissue from an allograft is rejected.