Which of the following statements is false?
a. DNA is usually composed of two nucleotide strands.
b. DNA contains deoxyribose.
c. DNA does not normally contain uracil.
d. The nucleotides of DNA are linked by phosphodiester linkages.
e. DNA does not normally contain a phosphate group
E
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In liverworts, what is the gemma cup?
a. fat-knoblike structure that attaches the sporophyte to the gametophyte b. small, broken piece of leaf fragments by which liverworts asexually reproduce c. fibrous, anchoring hair on the underside of the thallus d. the liverwort female gametophyte
Hemophilia is caused by an X-linked recessive gene. A normal woman whose father had hemophilia
marries a normal man. What are the chances of hemophilia in their children? What will be an ideal response?
What structures form the subunits of ribosomes?
A) mRNA and DNA B) tRNA and mRNA C) rRNA and proteins D) DNA and proteins
Which of the following is an example of a postzygotic reproductive barrier
What will be an ideal response?