The process of asexual reproduction where a diploid embryo develops from an unfertilized egg or from diploid cells in
ovule tissue is called ____.
a. fragmentation
b. protoplast fusion
c. somaclonal selection
d. grafting
e. apomixes
ANSWER: e
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Indicate whether the statement is true or false.
The observed "puffs" in the polytene chromosomes of Drosophila are sites of
A) attenuation. B) condensation. C) induction. D) transcription. E) translation.
When analyzing octads (ordered tetrads), second-division (MII) segregations result from
A) single crossovers between linked genes. B) double crossovers between linked genes. C) single crossovers between a gene and a centromere. D) independent assortment of unlinked genes. E) nondisjunction of homologs.
Failure of the organs in the vestibular apparatus to function correctly can cause ____
a. lack of sensation on the skin b. loss of hearing c. motion sickness d. inability to smell e. night blindness