Which of the following would make a human disorder-causing allele or gene easiest to locate?
A) a genomic library for the chromosome on which the gene is located
B) a cDNA library for the chromosome on which the gene is located
C) a group of 10 known candidate genes
D) a transposon known to segregate with the gene
E) a single patient with a chromosomal translocation associated with the gene
E
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The major cost to plants for having cuticle-covered epidermis in the shoot system to reduce water loss
is reduced ____ uptake.
a. carbon dioxide b. potassium c. nitrogen d. calcium e. oxygen
Meiosis consists of:
a. one round of chromosome duplication and one round of nuclear division. b. one round of chromosome duplication and two rounds of nuclear division. c. two rounds of chromosome duplication and two rounds of nuclear division. d. two rounds of chromosome duplication and one round of nuclear division.
Which of the following shows Chargaff's equivalence?
A) RNA B) single-stranded DNA C) histones D) double-stranded DNA E) deoxyribose
How would one explain a testcross involving F1 dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced?
A) The two genes are closely linked on the same chromosome. B) The two genes are linked but on different chromosomes. C) Recombination did not occur in the cell during meiosis. D) Both of the characters are controlled by more than one gene.