The process of cell specialization within a multicellular organism is
A. cancer.
B. cytokinesis.
C. mitosis.
D. determination.
D. determination.
Biology & Microbiology
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A site where a substrate binds to an enzyme
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site
Biology & Microbiology
Amino acid sequences that are rich in lysine and protrude from the histone proteins in the nucleosome are called "tails."
A. true B. false
Biology & Microbiology
Meiosis in female humans is completed
a. before birth. b. shortly after birth. c. during the ovarian cycle. d. at fertilization. e. when a woman is fully mature
Biology & Microbiology
During a human pregnancy, implantation
occurs at which stage?
a. zygote b. early cleavage c. blastocyst d. gastrula e. embryo
Biology & Microbiology