How many chromosomes should be in an endosperm nucleus?
A) 8
B) 16
C) 24
D) 32
C
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The colinearity rule describes rev
A. the correlation between the spatial arrangement of homeotic genes along the chromosome with their expression. B. The correlation between the timing and location of expression of homeotic genes. C. the long stretches of DNA between homeotic gene complexes. D. the parallel arrangement of homeotic genes between different chromosomes. E. the spatial arrangement of alpha helices in proteins encoded by homeotic genes.
What is meant by the term "fluid mosaic model"?
a. It is the diffusion of lipid-soluble substances through the lipid bilayer. b. It is the movement of lipids and integral proteins within the lipid bilayer. c. It is the solubility of water in the membrane. d. It is the method of substance transport across the membrane. e. It is the movement of surface proteins through the membrane
Compare and contrast the three types of muscle tissue
What will be an ideal response?
Hydrocarbons are organic molecules that contain only ______.
A. components found only in crude oil B. carbon and hydrogen atoms C. carbon atoms D. carbon, hydrogen, and oxygen atoms