What fraction of the time will the cross of Aa Bb Cc with Aa Bb Cc produce an offspring that is purebreeding?
a. 3/64
b. 1/16
c. 1/8
d. 9/64
e. 27/64
C
Biology & Microbiology
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Which of the following are mechanisms to prevent polyspermy?
_____ altering composition of exterior egg coat _____ change in membrane potential of egg _____ cortical granule enzymes remove sperm receptors from egg _____ special proteins inside the egg compare the DNA of different sperm, choosing the most adapted one _____ toxic molecules exit the egg to attack extra sperm _____ vitelline envelopes lift off surface of egg
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What will be an ideal response?
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