What would result if more than one sperm fertilized an egg?

A. hermaphroditism
B. parthenogenesis
C. polyploidy
D. twins
E. haploidy


C. polyploidy

Biology & Microbiology

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Nematocysts are used for: a. debilitating prey

b. attaching to solid materials. c. bioluminescence. d. locomotion.

Biology & Microbiology

All blood cells and platelets originate from stem cells

a. true b. false

Biology & Microbiology

Which of the following statements about post-translational modifications is false?

A) Additional inorganic factors could be added. B) Post-translational modifications can include the addition of extra amino acids. C) Post-translational modifications are often required for a protein to function. D) Post-translational modifications provide a way for cells to regulate gene product functionality. E) Additional organic factors could be added.

Biology & Microbiology

Phenylketonuria is an inherited disorder. Affected individuals have a defective enzyme called phenylalanine hydroxylase. The substance that these individuals cannot break down is a(n):

A) carbohydrate. B) nucleic acid. C) protein. D) lipid. E) amino acid.

Biology & Microbiology