A phylogenetic species is defined as the smallest diagnosable group that contains all the descendants of a single common ancestor

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Besides Darwin, the theory of evolution by means of natural selection was also independently proposed by:

A. Charles Lyell. B. Karl Popper. C. Thomas Malthus. D. Peter Raven. E. Alfred Wallace.

Biology & Microbiology

VNTR analysis involves ________

A) cutting DNA with restriction enzyme and analyzing the banding pattern of fragments B) PCR amplification of specific genes C) analyzing specific loci for 2 base repeating units usually less than 100 bp in size D) analyzing specific loci for 2 to 4 bp repeating units E) None of these choices

Biology & Microbiology

Which of the following statements concerning cryptochrome is FALSE?

a. It is implicated in resetting the biological clock. b. It is a "clock protein." c. It absorbs green light. d. Its counterparts are found in fruit flies and mice. e. It sometimes interacts with phytochrome.

Biology & Microbiology

The head of a sperm is capped with an organelle that contains glycoprotein-digesting enzymes. This organelle is the...

A. zona pellucida. B. acrosome. C. granulosa. D. neural cap.

Biology & Microbiology