It is known that many trees lose their leaves in response to decreasing day length. As a result, you think that Gingko trees may also lose their leaves in response to decreasing day length. This statement is an example of:
A. a theory
B. deductive reasoning
C. an experiment
D. a hypothesis
D
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Approximately how many neurons are in the human brain?
a. 1,000 b. 10,000 c. 100,000 d. 100,000,000 e. 100,000,000,000
Spermatogenesis is governed by _____
a. GnRH b. luteinizing hormone only c. luteinizing hormone and follicle stimulating hormone d. follicle stimulating hormone only e. GnRH, luteinizing hormone, and Sertoli cells
According to Mendel's law of segregation, ________
A) two alleles segregate into each gamete B) more gametes carrying the dominant allele are produced than gametes carrying the recessive allele C) gametes have one allele copy for each gene D) gametes are diploid
What is the function of RNA polymerase?
A. It proceeds slowly along the DNA strand, requiring about a minute to add two nucleotides to the growing mRNA molecule. B. It unwinds the double helix and adds nucleotides to a growing strand of RNA. C. It adds nucleotides to the 5' end of the growing mRNA molecule. D.It relies on other enzymes to unwind the double helix. E. All of the above.