Mitosis is essential for
A) growth of an organisms
B) repair of injured tissue
C) formation of gametes
D) replacement of worn-out cells
E) A, B, D are true
Answer: E) A, B, D are true
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Approximately 4 billion years ago Archaea and Bacteria diverged as being distinct from each other
Indicate whether the statement is true or false.
If R is dominant to r, the offspring of the cross of RR
with rr will a. be homozygous. b. display the same phenotype as the RR parent. c. display the same phenotype as the rr parent. d. have the same genotype as the RR parent. e. have the same genotype as the rr parent.
The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a computer-generated
A) Western blot. B) DNA sequence. C) freeze-fracture replica. D) hydropathy plot. E) prediction of glycosylation sites.
When two identical alleles for a character are present, the genotype is referred to as:
A) dominant. B) recessive. C) heterozygous. D) homozygous.