The purple sulfur bacteria carry out oxygenic photosynthesis
Indicate whether the statement is true or false
FALSE
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Karyotype analysis
a. is a means of detecting and reducing mutagenic agents. b. is a surgical technique that separates chromosomes that have failed to segregate properly during meiosis II. c. can be used in prenatal diagnosis to detect chromosomal mutations and genetic disorders in embryos. d. replaces defective alleles with normal ones. e. is used in DNA analysis for paternity.
The cap on the 3' end of mRNA helps attach the mRNA to the ribosome. Indicate whether the statement is true or false
Which of the following is one of the main locations for the type of tissue in Figure 39-1?
a. lining of the digestive tract b. within blood vessels c. dermis of the skin d. respiratory passages e. air sacs of the lungs
Which of the following components is brought into a cell by HIV?
A) a DNA-dependent DNA polymerase B) RNA polymerase C) ribosome D) reverse transcriptase