The increase in cytosolic calcium within the egg during fertilization initiates
A. the slow block to polyspermy.
B. the cortical reaction.
C. signaling for the first cell division.
D. the release of enzymes by the egg.
E. All of the choices are correct.
E. All of the choices are correct.
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What is represented by the part of the figure labeled as “B”?
a. normal tissue b. cancerous tissue c. adipose tissue d. lymph nodes e. red blood cells
Each version of a gene is called a(n)
a. allele. b. chromosome. c. histone. d. centromere. e. artifact.
What does polarization refer to?
A) the electrical signal generated by neurons B) the lack of concentration gradient for sodium C) the decrease in charge difference across a membrane D) the difference in charge across a membrane
The "r" in "rRNA" stands for reticulum RNA because this type of RNA is associated with the endoplasmic reticulum.
Answer the following statement true (T) or false (F)