Hepatitis B virus is an example of a DNA virus that uses reverse transcriptase in its replication cycle.
Answer the following statement true (T) or false (F)
True
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Which of the following is true of supercoiling?
A. The relaxed form of DNA is more stable and is therefore the preferred form in the cell. B. Most organisms maintain their DNA in a slightly overwound state in order to enhance strand separation during transcription and replication. C. Overwound DNA is in the B form so relaxed DNA has less turns than B-form DNA. D. Most organisms maintain their DNA in a slightly underwound state in order to compact their DNA. E. The relaxed form of DNA can only be maintained if the DNA is a closed circle.
A cell with one set of chromosomes would be termed a cell.
A. diploid B. sister C. None of the answer choices is correct. D. haploid E. somatic
The allele for albinism (c) is recessive to the allele for normal pigmentation (C). A normally pigmented woman whose father is an albino marries an albino man whose parents are normal. They have three children, two normal and one albino. What would be the genotype for the two normal children?
A. Cc B. cc C. CC D. either CC or Cc E. either Cc or cc
The main reason certain seeds germinate near the soil surface rather than deep in the soil is
A. they are then more aware of their surroundings. B. they require light to germinate. C. they need additional oxygen. D. they are sensitive to the cold temperatures of the soil. E. they have water deprivation.