Genes can be transferred between prokaryotic cells when they exchange ________ .

A) ribosomes.
B) mitochondrial DNA.
C) nuclei.
D) plasmids.
E) cytoplasms


Answer: D) plasmids.

Biology & Microbiology

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A tracheid is:

A. a gametophyte cell B. a small branch of an insect trachea C. a seed-bearing stem D. a specialized vascular cell E. a reproductive chamber

Biology & Microbiology

An individual with the genotype AaBbCC will produce gametes with which possible assortment of genes?

A) A,B,a,b, or C B) Aa, Bb, or Cc C) ABC, AbC, aBC, or abC D) AaBbCC

Biology & Microbiology

Which of the following is a characteristic of all chordates?

A) They all have vertebral columns. B) They all exhibit radial symmetry. C) They all have a notochord sometime during their life cycle. D) They all have an exoskeleton sometime during their life cycle.

Biology & Microbiology

Wetlands ________

A) are important in improving water quality B) include rivers, streams, ponds, and lakes C) are bodies of swiftly flowing water D) are found in the intertidal zone

Biology & Microbiology