MULTIPLE CHOICE, Choose the one alternative that best completes the statement or

Question

MULTIPLE CHOICE, Choose the one alternative that best completes the statement or answers the question. 1) Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in 1) helping.cwate light acrodynamie surfaces. This switch in function is an example of a(n) B) paedomorphosis D) an analogy C) an adaptation 2) Which of the following would likely be the most difficult to kill if you were you to can your own 2) A) streptococci B) biofilms C) staphylococci D) endospores 3) These bacteria are distinctive in their extraordinarily great resistance to radiation and 3) dessication: B) Bdellovibrio C) E. coli D) Staphylococcus 4) If the frequency of one allele in a population is 0.7 in a population with two alleles at a particular 4 locus, what is the frequency of the alternate allele? A) 0.42 B) 0.21 C) 0.09 0.30 5) The science of naming, identifying, and classifying organisms is called 5) A) phylogeny B) biogeography systematics D) taxonomy 6) Whieh of the following describes allopatric speciation? 6) population of squirrels is separated by the Grand Canyon. The two subpopulations evolve into two distinct species. B) A male horse and a female donkey mate, producing a sterile hinny C) One population breeds in the fall; another population breeds in the spring D) A tetraploid species are found in the same habitat 7) Under ideal conditions, prokaryotes are capable of reproducing at afn) B) infinite A) negative 7) C) variable A) Individual organisms evolve structures that they need. B) Individuals evolve through natural selection. C) Natural selection works on nonheritable traits. D) Natural selection works on variation already present in a population. 8) 9)believed that use (or lack of use) of body parts enables individual to develop certain traits 9) that it passes on to its offspring while change over time. believed that species are fixed forms that do not A) Aristotle... Lamarck C) Lamarck... Aristotle B) Darwin... Aristotle D) Lamarck... Darwin

Explanation / Answer

AS PER CHEGG POLICY, PROCEEDING TO ANSWER ONLY THE FIRST 4 QUESTIONS/SUBQUESTIONS/PARTS/SUBPARTS, THAT IS, QUESTIONS 1 TO 4, UNLESS SPECIFIED TO DO SO BY THE QUESTION UPLOADER:

ANSWER 1)
A) Expatation

ANSWER 2)
D) Endospores - this is because endospores are a hard-shelled dormant reproductive cell which can thus withstand radiation and dessication.

ANSWER 3)
A) Deinococcus

ANSWER 4)
As per Hardy-Weinberg Equilibrium, let
p = Frequency of Dominant Allele
q = Frequency of Recessive Allele
Also p + q = 1
Now,
p2 = Frequency of Homozygous Dominant Genotype
2pq = Frequency of Heterozygous Dominant Genotype
q2 = Frequency of Homozygous Recessive Genotype
Since p = 0.7, p+q =1
D) 0.30

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