Which of the following is NOT an example of
an extracellular matrix?
a. cuticles of plants
b. cuticles of crabs
c. cell walls
d. cell membranes
e. basement membranes
D
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Mendel, in working with monohybrid crosses, discovered that alleles are discrete entities, typically showing two variations per trait. These variations can be separated from each other and observed in the resultant offspring. This was the basis of Mendel's law of ________.
Fill in the blank(s) with the appropriate word(s).
Meiosis proceeds different in males compared to females. Which of the following best describes one of those differences?
A. The haploid cells produced by spermatogenesis are genetically diverse from the original parent cell and the haploid cells produced by oogenesis are genetically identical to the original parent cell. B. Spermatogenesis occurs in the ovaries and oogenesis occurs in the testes. C. Spermatogenesis results in the production of four haploid sperm cells and oogenesis results in the production of a single haploid egg cell. D. Spermatogenesis produces haploid cells and oogenesis produces diploid cells. E. Spermatogenesis begins while the man is still a fetus, but oogenesis does not begin until after a woman reaches puberty.
Without _____, humans might have a tail
a. differentiation b. epigenetics c. cell migrations d. apoptosis e. the maternal gene effect
Why would someone allergic to pecans want to avoid other tree nuts as well?
What will be an ideal response?