Mechanism of genetic transfer that uses competent cells
A. Transformation
B. Transduction
C. Conjugation
D. All of the answers are correct
A
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Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that most animals derive their nutrition by _____
A) preying on animals B) ingesting it C) consuming living, rather than dead, prey D) using enzymes to digest their food
The first eukaryotic cells were ____
a. bacteria b. archaea c. protists d. algae e. fungi
A cross of two Kerry horses always produces Kerry. A cross of a Kerry with a Dexter horse produces
1/2 and 1/2. Crosses of two Dexters produce two Dexters for every Kerry. Explain. What will be an ideal response?
In humans and in chimpanzees, 99% of the Alu retrotransposons are in corresponding positions. Which of the following statements below is the most likely explanation for this similarity?
(a) The Alu retrotransposon is not capable of transposition in humans. (b) Most of the Alu sequences in the chimpanzee genome underwent duplication and divergence before humans and chimpanzees diverged. (c) The Alu retrotransposons are in the most beneficial position in the genome for primates. (d) The Alu retrotransposons must also be in the same position in flies.