A DNA sequence that encodes for a specific product (ribonucleic acid [RNA] or protein) is defined as a:
a. gene.
b. genome.
c. nucleotide.
d. deoxyribonucleic acid.
A
The genome is the collection of all the genes of an organism. Nucleotides and DNA are building blocks of genes.
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The structure labeled "7" is the
a. food vacuole. b. gullet. c. macronucleus. d. micronucleus. e. mitochondrion.
A keystone species
a. has a disproportionately large effect on a community relative to its abundance. b. controls the prey species. c. may increase or decrease the number of prey species in a community. d. has a disproportionately large effect on a community relative to its abundance and may increase or decrease the number of prey species in a community. e. has a disproportionately large effect on a community relative to its abundance, controls the prey species, and may increase or decrease the number of prey species in a community
A male with an X-linked recessive disorder mates with a female who is a carrier for this same X-linked recessive disorder. Which of these is the correct expected frequency of this disorder in their children?
A. 50% frequency in the sons B. 50% frequency in the daughters C. 50% frequency in both the sons and the daughters D. 100% frequency in the sons
Explain the components of an ATP molecule.
What will be an ideal response?