ATP is hydrolyzed by actin
a. in the process of assembly into a filament.
b. after assembly but before disassembly.
c. in the process of disassociation.
d. after disassociation from the filament.
e. None of the above
Answer: b. after assembly but before disassembly.
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A sponge body type consisting of one spongocoel having many folds is called:
a. asconoid. b. syconoid. c. leuconoid. d. hexactinellida. e. demospongoid.
The lining of the uterus that is lost and replaced on a monthly basis in the form of menstrual fluid and serves as the site of implantation. _____
A) Endometrium
B) Testis
C) Cervix
D) Uterus
E) Oviduct
F) Ovaries
G) Vagina
H) Seminal vesicle
I) Penis
J) Prostate gland
K) Vas deferens
L) Glans penis
The ________ is a group of cells that will develop into the chorion
Fill in the blank(s) with correct word
Tay-Sachs is inherited as an autosomal recessive allele. Homozygous individuals die within the first few years of life. However, there is some evidence that heterozygous individuals are more resistant to tuberculosis. Which of the following statements
about Tay-Sachs is true? A) The allele for Tay-Sachs is always selected against. B) This situation is an example of heterozygote advantage if tuberculosis is present in a population. C) This situation is an example of disruptive selection. D) Heterozygotes will be more fit than either homozygote regardless of environmental conditions.