A protein that interacts with an antibody is called a(n) ____________________
Fill in the blank(s) with correct word
antigen
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The evidence supporting Porto Santo rabbits as a new and recent species does not include:a
a different coat color pattern from mainland European rabbits. b. the ability to produce fertile offspring with mainland rabbits under experimental conditions. c. a more nocturnal lifestyle. d. being only about half the size of the mainland rabbits. e. the inability to produce fertile offspring with mainland rabbits under natural conditions
Which of the following statements would NOT be considered a mechanism of action of hormones?
A. Adjacent cells coordinate cellular activities by exchanging ions and molecules across gap junctions. B. Increase or decrease the rate of synthesis of a particular enzyme or other protein by changing the rate of transcription or translation. C. Turn an existing enzyme or membrane channel "on" or "off" by changing its shape or structure. D. Stimulate the synthesis of an enzyme or a structural protein not already present in the cytoplasm by activating appropriate genes in the cell nucleus.
In the genetic code, 61 of the codons specify amino acids and three codons are stop codons
However, according to the wobble hypothesis, a minimum of 31 tRNAs (excluding the initiator) are required to recognize 61 codons. What is the wobble hypothesis? Include in your answer the allowed base pairing scheme between codon and anticodon for the base inosine in the first position of the anticodon. What will be an ideal response?
Geographically isolated subpopulations of a species can evolve partial reproductive isolation in allopatry
If both subpopulations come into secondary contact, they can either fuse into one mixed population, or, dur-ing a process called reinforcement, selection will lead to greater reproductive isolation. The latter will occur if mating with individuals from the other subpopulation reduces an individual's fitness, as the resulting hybrid offspring has lower fitness. Could cultural evolution play a role in reinforcement? a. Yes, if traits that affect reproductive isolation can be culturally transmitted. b. Yes, but only if there is zero cultural transmission between subpopulations. c. No, in order to form separate species, the changes have to be genetic. d. No, culturally transmitted behavioral traits are bound to be "leaky" (allow for some level of gene flow).