In positional cloning, the researcher begins with a phenotype. To move toward identification of its DNA sequence, she must begin with what step?
What will be an ideal response?
genetic mapping
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During cytokinesis, a critical step in septation is the assembly of the
A. spindle body. B. replisome. C. cytoskeletal spiral. D. Z ring.
In a nucleosome, the DNA is wrapped around _____
A) polymerase molecules B) ribosomes C) histones D) a thymine dimer E) satellite DNA
How does crossing-over during meiosis contribute to genetic variation?
A. Each cell created has chromosomes only from a single parent. B. Crossing-over always causes loss of some genetic information. C. Because genes will be in a new order on some chromosomes,additional DNA will need to be made. D. The exchange of genetic material between homologous chromosomes means that a single chromosome now combines genetic information from both parents.
How does the location of DNA in animal cells compare to DNA's location in plant cells?
What will be an ideal response?