Imagine a population of giraffes- some with short necks, some with medium length necks, and some with long necks. Over time trees get taller and it is helpful for giraffes to have longer necks that can reach the leaves.
Which of the following statements best describes what will happen under a model of evolution via NATURAL SELECTION (Darwin)?
Question 1 options:
Over time ALL of the giraffes will have long necks because natural selection will select long necks as favorable and cause all giraffes with long necks to survive. Those with mid-length or short necks will eventually die off.
There will be NO CHANGE in the population since evolution via natural selection is not designed to create populations with a perfect form (i.e., long necks).
Over time MORE of the giraffes will have longer necks, but there will still be some with mid-length and short necks.
Over time ALL of the giraffes will have long necks because they will work to lengthen their necks in each generation, passing those longer necks on to their kids.
Imagine a population of giraffes- some with short necks, some with medium length necks, and some with long necks. Over time trees get taller and it is helpful for giraffes to have longer necks that can reach the leaves.
Which of the following statements best describes what will happen under a model of evolution via NATURAL SELECTION (Darwin)?
Question 1 options:
Over time ALL of the giraffes will have long necks because natural selection will select long necks as favorable and cause all giraffes with long necks to survive. Those with mid-length or short necks will eventually die off.
There will be NO CHANGE in the population since evolution via natural selection is not designed to create populations with a perfect form (i.e., long necks).
Over time MORE of the giraffes will have longer necks, but there will still be some with mid-length and short necks.
Over time ALL of the giraffes will have long necks because they will work to lengthen their necks in each generation, passing those longer necks on to their kids.
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Need help with evolution questions:
1.) A haplotype is best defined as the ________________.
haploid genotypes of all the gametes produced by a diploid individual | |
ABO blood type conferred by an individual gamete |
genotype of either the paternal or maternal chromosomal complement |
multilocus genotype of a chromosome or gamete |
2.) Which of the following statements regarding linkage disequilibrium is true?
Exists when D is less than zero, but not when it is greater than zero. |
Is reduced by sexual reproduction. |
Is increased by crossing-over during meiosis. |
Is increased by any random sampling error that happens to create or destroy certain chromosome genotypes but not others. |
Is reduced by selection that favors certain combinations of genotypes. 3.) Selection on multilocus genotypes in random-mating populations leads to linkage disequilibrium when _______________.
|