The human ABO blood type system (Do not consider the Bombay phenotype) involves all of the following EXCEPT:
a) complete dominance
b) multiple alleles
c) co-dominance
d) polygenic inheritance
Ans: d) polygenic inheritance
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What component of a negative feedback mechanism does the brain or spinal cord represent?
a. response b. sensor c. integrator d. effector e. stimulus
Color blindness is an X-linked trait in humans. If a
color-blind woman marries a man with normal vision, the children will be a. all color-blind daughters, but normal sons. b. all color-blind sons, but carrier daughters. c. all normal sons, but carrier daughters. d. all color-blind children. e. all normal children.
Phenylketonuria (PKU) is caused by the absence of the enzyme phenylalanine hydroxylase, which catalyzes the first step of the pathway that breaks down the amino acid phenylalanine, a common component of dietary protein
Explain how environmental intervention is commonly practiced to prevent the development of this human autosomal recessive condition.
Which is the process by which a protein is constructed in the cytoplasm of eukaryotic cells?
A. translation B. transcription C. translocation D. transformation