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
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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
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
Both theory and evidence strongly suggest that social behaviors are determined by genes.
Answer the following statement true (T) or false (F)
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.