During crossing over, _____.

A) corresponding portions of genetic material are switched between homologous chromosomes
B) beneficial combinations of genes are passed intact from parent to gamete
C) the better, dominant genes are recombined prior to gamete formation
D) all of the choices characterize crossing over


Answer: A) corresponding portions of genetic material are switched between homologous chromosomes

Biology & Microbiology

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An individual that has the appropriate number of chromosomes for their species is known as _______.

a. euploid b. aneuploid c. an autosome d. monosomy

Biology & Microbiology

Coughing is initiated by ________ located in the ________

A) stretch receptor : trachea B) chemoreceptors : trachea C) irritant receptors : nose and pharynx D) irritant receptors : trachea E) chemoreceptors : nose and pharynx

Biology & Microbiology

Both theory and evidence strongly suggest that social behaviors are determined by genes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The thyroid gland is located

A. in the brain. B. in the neck. C. near the ovaries or testes. D. on top of the kidneys. E. near the small intestines.

Biology & Microbiology