When the internal urethral sphinceter doesn't work and semen goes into the bladder it is called what?
What will be an ideal response?
Ans: Retrograde Ejaculation
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Phenotypically, a female (XX) mouse embryo that was transformed with a small piece of a Y chromosome bearing the SRY gene would develop as
A) a male. B) a female. C) an intersex individual. D) a male initially, then revert to female after birth. E) a female initially, then revert to male after birth.
Why might increased soil fertility result in lower species diversity?
A) There is no relationship between soil fertility and species diversity. B) Increased nutrients help more rare plants survive. C) Dominant species are better able to outcompete other species. D) Dominant species are less able to outcompete other species.
Each of the following is used in the process of DNA sequencing EXCEPT which one?
A) modified nucleotides B) nucleotides C) gel electrophoresis D) RNA polymerase E) DNA polymerase
Which number describes a Phase Contrast Microscope?
What will be an ideal response?