The very ends of chromosomes in cells that may be correlated with longevity are known as

B cells.
T cells.
alleles.
telomeres.

telomeres.

Psychology

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The most common extra-chromosome condition that results in a surviving child is:

cystic fibrosis. Down syndrome. hemophilia. Huntington disease.

Psychology

The main sexually transmitted infections that are caused by viruses are:

a. gonorrhea, syphilis, and chlamydia. b. genital herpes, HPV, and AIDS. c. HIV, HPV, and syphilis. d. chlamydia, genital herpes, and gonorrhea.

Psychology