Which of the following do not contribute to the existence of life in the bottom of oceans?
What will be an ideal response?
Formic acid from weathering limestone
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You are studying a diploid organism that has 14 sets of chromosomes. How many chromatids will a cell from this organism have in metaphase of meiosis II?
A. 7 B. 14 C. 28 D. 56
Escherichia coli ____
a. has only recently been employed in scientific research b. can undergo natural transformation c. is a disease caused by prions d. replicates slowly e. can be infected by bacteriophages
High-intensity training in racehorses results in ____
a. the expression of genes involved in energy metabolism, insulin response, and muscle inflammation b. the expression of genes involved in metabolism, oxidative phosphorylation, and muscle structure c. no phenotypic or biochemical changes d. no change in the expression of genes, but changes in phenotypes e. changes in the expression of genes, but no changes in phenotypes
Monozygotic twins:a
occur when two eggs are ovulated. b. may be of different sexes. c. have different sets of genes. d. are called identical twins. e. result from the fertilization of two sperm cells.