Cytoplasmic localization in animal eggs gives rise to ________
a. the yolk
b. mRNA transcripts
c. the polarity of the embryo
d. two identical embryos
c
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In the Hardy-Weinberg equation, p + q =_______, where p and q represent _________.
A. 0, allele frequencies B. 1, genotype frequencies C. 2, allele frequencies D. 2, genotype frequencies E. 1, allele frequencies
You observe a sunflower that moves its leaves so that it tracks the sun across the sky through the day, and a sensitive
plant that reversibly folds up its leaflets when you touch it. These are both examples of ____.
a. phototropism b. thigmotropism c. stress responses d. circadian rhythms e. nastic movements
Southern blot is a method for ____
a. amplifying DNA segments using cycles of denaturation, annealing to primers, and DNA polymerase-directed DNA synthesis b. transferring DNA fragments from a gel to a membrane filter and used in hybridization experiments c. determining the nucleotide sequence of a DNA molecule d. producing several clones from a single cell by placing the cell in a Petri dish and allowing it to go through several divisions e. detecting mutant genes or differences in the pattern of gene expression
A hormone that will be secreted from a cell is manufactured by ribosomes ________
A) attached to the endoplasmic reticulum B) attached to the Golgi apparatus C) attached to the plasma membrane D) inside the nucleus