Mitosis results in:
a) eight daughter cells.
b) daughter cells with the same number of chromosomes but different combinations of alleles.
c) daughter cells with twice as much genetic material and a unique collection of alleles.
d) daughter cells with the same number and composition of chromosomes.
e) daughter cells that contain chromosomes composed of sister chromatids.
Ans: d) daughter cells with the same number and composition of chromosomes.
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In A. thaliana, genes encoding proteins involved in secondary cell wall development are regulated by an average of
five different ____.
a. tissues b. lignins c. transcription factors d. ribosomes e. genes
Covalent bonds ________.
Fill in the blank(s) with the appropriate word(s).
A dehydration reaction (or condensation reaction) is the process in which
a. Water molecules are attracted to each other b. Water molecules are used as a source of raw materials to break down polymers to monomers c. water molecules are produced as a polymer is formed by monomers d. The bonds between the individual monomers of a polymer are broken by the addition of water molecules e. None of these
A nucleotide is composed of the following molecules arranged in this order:
A. three amino acids covalently bonded in a series. B. three fatty acids individually bonded to three different places on glycerol. C. a base bonded to a sugar bonded to a phosphate. D. mRNA bonded to tRNA bonded to an amino acid.