The chromosome theory of inheritance sought to explain Mendelian patterns in terms of chromosome movement. Can you think of an experimental approach to test for the Mendelian principle of segregation using chromosomes?

What will be an ideal response?


If replicating chromosomes could be chemically marked, permitting identification of each daughter chromatid, the movement of each could then be tracked. Radioisotopes are commonly used in such labeling experiments.

Biology & Microbiology

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Which of the following statements is false?

a. It is assumed that lower animals are incapable of perception. b. Humans, as the most complex organisms, have all of the sensory organs found in lower forms. c. Mechanoreceptors are responsible for the senses of equilibrium and hearing. d. Nociceptors detect damage to tissues. e. A lobster reacts to the boiling water in which it is placed to cook.

Biology & Microbiology

Which of the following can cause vasoconstriction?

A) increase in carbon dioxide B) increase in histamine C) increase in osmolarity D) release of nitric oxide E) angiotensin II

Biology & Microbiology

Which of the following is not a modification to the mRNA?

A) Intron removal B) Promoter binding C) End capping D) Exon splicing

Biology & Microbiology

_______________ is the study of how traits are passed from generation to generation.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology