Identify the following structures on this aboral view of the tip of a sea star arm.
What will be an ideal response?
(a) skin gills
(b) pedicellaria
(c) tube feet.
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Electroporation is commonly used to introduce recombinant DNA molecules into cells.
Answer the following statement true (T) or false (F)
Amed has scaly skin due to the X-linked recessive condition icthyosis. He is ________ for the trait.
A) autosomal dominant B) heterozygous C) homozygous D) hemizygous
Gregor Mendel performed his famous experiments on:
a) pigeons. b) hawkweed. c) humans. d) punnett squares. e) garden peas.
When an electron in a pigment molecule is absorbed by a photon, it ____.
A. is always shared with another atom via a double bond B. is always shared with another atom via a single bond C. emits its extra energy and returns to its original energy level D. moves to a higher energy level and remains there E. moves to a lower energy level and remains there