The timing of puberty can be influenced by which of the following?:
a. genes
b. stress
c. amount of body fat
d. all of the above
Answer: d. all of the above
Biology & Microbiology
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Physical exchange between homologous chromosomes (crossover) occurs during the fourstrand stage of meiosis
A. true B. false
Biology & Microbiology
The functional link between cardiac muscle cells is called ____
a. intrinsic pacemakers b. nodes c. intercalated discs d. bundle branches e. extrinsic pacemakers
Biology & Microbiology
Which technique uses the least amount of sample needed for forensic analysis?
A) PCR B) RFLP C) Genomic DNA D) cDNA isolation E) Southern blot
Biology & Microbiology
Dead or damaged cells are replaced by the process of ________
A) fertilization B) binary fission C) meiosis D) mitosis
Biology & Microbiology