Which of the following was NOT proposed by Lamarck's theory of evolution?
a. Changes in species are a result of natural selection.
b. Organisms change in response to their environment.
c. New characteristics are passed from one generation to the next.
d. Species change through time.
Answer: a. Changes in species are a result of natural selection.
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buds? a. attached to the stem at internodes b. may occur at the tip of the twig c. some are called lateral d. may give rise to leaves e. mostly meristematic tissue
In the cell cycle, cells can progress from G1 to S to G2, and to mitosis and cytokinesis. The timing of these events is controlled by which of the following?
a) cyclins b) cyclin-dependent protein kinases (Cdks) c) actin myofilaments d) centrosome e) cyclin-Cdk complexes
How was it determined that X-rays are mutagenic?
What will be an ideal response?
If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait
a. autosomal recessive
b. autosomal dominant
c. Y-linked
d. X-linked recessive
e. X-linked dominant