If Genome Size Varies,with Humans at 2900 Mb,a Specific Member

question 46

Multiple Choice

If genome size varies,with humans at 2900 Mb,a specific member of the lily family at 120 000 Mb,and a yeast at 13 Mb,what does this tell us?

• A)Size matters less than gene density.
• B)Size does not compare to gene density.
• C)Size is not correlated with the organism's phenotype.
• D)Size is mostly due to "junk" DNA.
• E)Size is comparable only within phyla.

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Definitions:

Synaptic Vesicles

Small sacs in the neuron that store neurotransmitters, which are released into the synaptic cleft to transmit nerve impulses to other neurons.

Axon Terminals

The distal terminations of the branches of an axon, making connections with other nerve cells or muscles and transferring the impulse.

Dendrites

Branch-like extensions of neurons that receive electrochemical signals from other neurons.

Corpus Callosum

A large band of neural fibers that connects the left and right hemispheres of the brain, facilitating communication and coordination between them.