They possess both, DNA and RNA in their structure:

A. prions
B. viruses
C. prokaryotes
D. both prokaryotes and eukaryotes
E. both viruses and eukaryotes


Ans: C. prokaryotes

Biology & Microbiology

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You are performing a fruit fly cross similar to those that Morgan performed. Unfortunately, you forgot to write down the parents of your cross

You count the progeny, and find you have 40 red-eyed males, 80 red-eyed females, and 40 white-eyed males. Assuming that all genotypes from this cross should have equal survival rates, what are the genotypes of the parent flies? A. XwY and Xw+Xw+ B. XwY and Xw+Xw C. Xw+Y and Xw+Xw D. Xw+Y and XwXw

Biology & Microbiology

Which statement regarding food webs is true?

A) A consumer eats only one type of producer. B) Detritivores consume dead organic matter from a specific trophic level. C) Several species of primary consumers may feed on the same species of producer. D) Energy transfer moves from producer to consumer and back.

Biology & Microbiology

Whales originated from a terrestrial ancestor

a. true b. false

Biology & Microbiology

One strand of DNA serves as a template for the synthesis of another so that __________.

A. the progeny of each cellular replication gets the same genetic information B. there are two copies of each gene on a single DNA molecule C. DNA can serve as a template for the synthesis of other polymers D. the helical shape of DNA is conserved

Biology & Microbiology