What is one of the major variables in the peacock butterfly experiment?
a. pattern/color of the wings
b. range of migration
c. species of bird predator
d. experimental location
e. percentage of survivors
ANSWER: a
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Which is the proper order of organization?
a. Cells, organs, tissues b. Cells, tissues, organs c. Organs, tissues, organs systems d. Organs, cells, tissues e. Tissues, organs, cells.
The organelles involved in organelle heredity are ________ and ________
Fill in the blank(s) with correct word
Large quantities of antibodies that react to the second entry of antigen and lead to formation of antigen-antibody complexes occurs in
A. anaphylaxis. B. delayed hypersensitivity. C. serum sickness. D. hemolytic disease of the newborn.
Genomic imprinting is generally due to the addition of methyl (-CH3 ) groups to C nucleotides and chemical histone changes to silence a given gene
If this depends on the sex of the parent who transmits the gene, which of the following must be true? A) Genes required for early development stages must not be imprinted. B) Methylation of this kind must occur more in males than in females. C) Methylation must be reversible in ovarian and testicular cells. D) The imprints are transmitted only to gamete-producing cells.