The first cell that leads to development of a new individual forms when

A) mitosis occurs.
B) meosis occurs.
C) a sperm and an ovum join.
D) a haploid cell and a diploid cell join.


C) a sperm and an ovum join.

Biology & Microbiology

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Which of the following features of a membrane protein is (are) never used as a membrane anchor?

a. C-terminal glycosylphosphatidyl inositol (GPI) b. An N-terminal myristoyl group c. Prenyl and palymitoyl group additions d. Oligosaccharide side chains

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The female homolog of the glans penis is the:

A. clitoris B. labia minora C. labia majora D. vulva E. vagina

Biology & Microbiology

The different proteins characteristic of breast cancer subtypes can be used as _____ for proper diagnosis and treatment

a. prebiotics b. biomarkers c. DNA clones d. bioinformatic data e. physical maps

Biology & Microbiology

The endosperm of a plant ____.

A. is the food supply for the new sporophyte plant B. is composed of haploid tissue C. protects the young embryo within a seed D. provides a connection between the ovary of a flower and a developing seed E. produces sperm cells

Biology & Microbiology