Because cell walls consist of a cross -linked network of long filaments embedded in a stiff surrounding material , they can be called ______
a -spongy bone
b -spot-welded sheets
c -plasma membranes
d -fiber composites
Answer: d -fiber composites
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How many nuclear envelopes form during mitosis and meiosis?
a. Two nuclear envelopes form during both mitosis and meiosis. b. Two nuclear envelopes form during mitosis and four during meiosis. c. Two nuclear envelopes form during mitosis and six during meiosis. d. Four nuclear envelopes form during both mitosis and meiosis.
In the garden pea, Mendel found that tall (D) green pods (G) and inflated pods (C) were dominant to
their alleles, dwarf (d) yellow pods (g) and constricted pods (c). Given the following genotypes, determine the chances of producing the offspring shown. (a) DD Gg Cc ? Dd Gg cc ? DD gg Cc (b) DD Gg Cc ? Dd Gg Cc ? tall green pod, constricted pod (c) Dd Gg Cc ? Dd GG cc ? tall green pod, inflated pod (d) Dd Gg Cc ? Dd Gg Cc ? D__ G__ cc (e) Dd Gg Cc ? Dd gg CC ? D__ G__ C__ (f) Dd gg cc ? DD Gg cc ? tall green pod, inflated pod (g) Dd Gg Cc ? Dd Gg Cc ? Dd Gg Cc (h) Dd Gg Cc ? Dd Gg Cc ? dd gg cc What will be an ideal response?
If a test tube of whole blood is subjected to centrifugation, the cells will be packed in the bottom of the
tube and the fluid above it will be designated a. water. b. serum. c. lymph. d. interstitial fluid. e. plasma.
Exactly why, in dideoxy DNA sequencing, do dideoxynucleotides halt the replication process?
What will be an ideal response?