Upwelling occurs in the equatorial waters of the ocean
Indicate whether the statement is true or false
TRUE
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Gene A occurs on chromosome #5; gene B
occurs on chromosome #21. Therefore, these two portions of the chromosome CANNOT be
a. homologous. b. in the same individual. c. homozygous. d. alleles. e. recessive
An anamnestic response is
a. the appearance of antibodies in serum. b. another name for primary response. c. the term used to describe the production of antibodies from a plasma cell. d. another name for secondary response.
Spina bifida is one of the most prevalent of human birth defects. The defect usually involves the spinal cord or the spinal canal opening to the outside of the body. Spina bifida results from problems during the formation of the _____
A) neural tube B) gastrula C) notochord D) somites E) blastula
If you isolate a single nucleotide from a nucleic acid chain and determine that the nitrogenous ring structure is cytosine, you could say with certainty that the nucleotide could have come from:
A. DNA but not RNA. B. RNA but not DNA. C. either DNA or RNA. D. neither DNA nor RNA. E. double-stranded DNA but not single- stranded DNA.