The ant Myrmecia pilosula is found in Australia and is named bulldog because of its aggressive behavior. It is particularly interesting because it carries all its genetic information in a single pair of chromosomes. In other words, 2n = 2

(Males are haploid and have just one chromosome.) Which of the following figures would most likely represent a correct configuration of chromosomes in a metaphase I cell of a female?

A) A B) B C) C D) D E) E


A

Biology & Microbiology

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At the end of the experiment, the bacteria

a. were evenly distributed throughout the chamber. b. were clustered on the algal filament. c. were clumped along certain areas of the algal filament. d. were actively avoiding the algal filament.

Biology & Microbiology

One part of Darwin's theory is that individuals

with certain traits have an increased competitive edge. The source of these traits is a. adaptation to stress. b. development over a lifetime. c. inheritance. d. mutation after birth. e. all of these.

Biology & Microbiology

The part of the brain that deals with the basic drives

such as hunger, sex, and thirst is the a. cerebrum. b. pons. c. cerebellum. d. thalamus. e. hypothalamus.

Biology & Microbiology

ATP acts as what type of agent in almost all metabolic pathways?

a. energy transfer b. feedback c. catalytic d. synthetic e. enzymatic

Biology & Microbiology