In humans, the allele for red-green color blindness is X-linked and recessive (Xr; the dominant allele is called XR). A man with normal color vision marries a color-blind woman who gives birth to a color-blind daughter
What can be inferred from this information? A) The woman is XRXr.
B) The man must be a carrier for the color blindness allele.
C) The daughter must be heterozygous.
D) The man is probably NOT the father of the daughter.
D
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A cell that lacks sulfite oxidase but can still oxidize sulfur for energy could be identified by
A) adenosine phosphosulfate reductase coupled with substrate-level phosphorylation. B) electrons being transferred to cytochrome c prior to shuttling them into the electron transport chain. C) identifying an alternative quinone, flavoprotein, or cytochrome. D) quantifying the release of sulfate byproduct.
It is believed that the surfaces upon which the first nucleic acids were able to form were made of:
A. limestone B. clay C. granite D. diamond E. sand
If you placed a red blood cell in a hypotonic solution, you would predict that its volume would ____ while the solute concentration in its cytoplasm would ____.
A. increase, increase B. increase, decrease C. decrease, increase D. decrease, decrease E. decrease, not change
Which of the sperm cells from the translocation carrier shown on the previous slide would produce a normal zygote if paired with a normal ovum?
1.A
2.B
3.C
4.D
5.E
6.F