Answer the following questions true (T) or false (F)

1. Reproductive cloning has been used to clone humans.

2. Forensic DNA typing can prove the innocence of a crime suspect.

3. Before Darwin, most scientists believed that species of organisms were fixed and unchanging.


1. FALSE
2. TRUE
3. TRUE

Biology & Microbiology

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Familial Down syndrome is a result of

A. inversion. B. deficiency. C. gene duplication. D. translocation

Biology & Microbiology

Which of the following characteristics of genetic material accounts for the need to get a flu vaccine every year, but a polio vaccine once in a life time?

A. Information. B. Replication. C. Transmission. D. Replication and Transmission. E. Variation.

Biology & Microbiology

Plants can generally absorb and make use of nitrogen in the form of

a. NO3 ? only. b. both NO3 ? and NH4 +. c. NH4 + only. d. N2 only. e. both N2 and NH4 +.

Biology & Microbiology

What is it hypothesized that the earliest known

cells used for producing energy?

a. iron oxide b. oxygen gas c. carbon dioxide d. water vapor e. iron sulfide

Biology & Microbiology