What are the two components of a stamen?

a. filament and anther
b. carpel and anther
c. filament and ovary
d. style and stigma


a. filament and anther

Biology & Microbiology

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Dispersal agents, such as pollen-carrying wind or seed-carrying animals, are responsible for ____ in most plant

populations because they often introduce novel alleles into a population.

a. gene flow b. genetic drift c. mutations d. nonrandom mating e. natural selection

Biology & Microbiology

A package of histones with DNA wrapped around them forms spherical structures called

a. nucleoli. b. chromatin. c. nucleosomes. d. ribosomes. e. lysosomes.

Biology & Microbiology

The analysis of genetic relatedness by observing the DNA fragmentation patterns resulting from restriction endonuclease cleavage is referred to as ________.

A. genetic patterning B. genetic restriction C. genetic fingerprinting D. genetic chunking

Biology & Microbiology

Homeostasis is maintained using negative feedback loops.   Which part of a negative feedback loop detects conditions?

A. Effector B. Stimulus C. Integrating center D. Sensor E. Response

Biology & Microbiology