You prepare the first ever karyotype of an endangered species of frog. Upon examination you find that all the chromosomes are metacentric. This is going to make it difficult to identify
A. which is the p arm of the chromosome.
B. which is the q arm of the chromosome.
C. the unique G banding for each chromosome.
D. if the chromosomes are telocentric.
E. both the p and q arms of the chromosome.
E. both the p and q arms of the chromosome.
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Which is not one of the four atoms that make up the bulk of living organisms?
A) Oxygen B) Nitrogen C) Calcium D) Carbon
Biologically speaking, a pigment:
a) is a molecule that absorbs a photon. b) is a cell that absorbs a photon. c) is a cell that absorbs carbon dioxide. d) is an electron that has been excited by a photon. e) is a molecule that releases oxygen.
A new plant species is introduced to Daphne Major and produces small, thin seeds. This plant species is highly adapted to drought and after 5 years has replaced over 80% of the native plants that produce large seeds. How will this change affect the evolution of beak size in the medium ground finch population?
A. Small beaks will be favored under all rainfall conditions. B. Large beaks will be favored under all rainfall conditions. C. Small beaks will be favored in wet years and large beaks will be favored in dry years. D. Large beaks will be favored in wet years and small beaks will be favored in dry years.
Damage to the collar would prevent the sponge from
A. secreting spongin to form the sponge body. B. circulating water through the sponge. C. producing gametes for sexual reproduction. D. extracting organic matter from the water.