In the phospholipase C signal transduction pathway, which two second messengers are produced?
a. IP3 and DAG
b. PIP2 and IP3
c. cAMP and IP3
d. phospholipase C and protein kinase A
e. phospholipase C and G protein
a
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If a normal diploid germ cell in a bird has eight chromosomes, then ______
a. there are eight homologous pairs of chromosomes per diploid germ cell b. there are eight chromatids per diploid germ cell after DNA replication c. there are four chromosomes per cell after the first meiotic division and cytokinesis d. there are eight chromosomes in the sperm cells made from this diploid germ cell e. there are eight copies of each chromosome in this diploid germ cell
The person who made a lasting impression in the science of genetics with his study of traits in pea plants was
A. Charles Darwin. B. Frederick Griffith. C. Robert Hooke. D. King George III. E. Gregor Mendel.
Which imaging technique measures states of consciousness?
a. fMRI b. MRI c. EEG d. PET scan e. CAT scan
The list below contains steps for the life cycle of Australian sheep blowflies. They are in random order, and some may be incorrect. Which sequence places the correct steps in the correct order?
1. egg 2. pupa 3. larva 4. tadpole 5. adult a. 1, 2, 4, 5 b. 1, 3, 2, 5 c. 1, 3, 4, 5 d. 1, 2, 3, 5