1) natural selection
2) directional
3) directional selection
4) organisms with extreme traits
5) foreign genes with traits that improve something about the plant
6) there is inefficient research to know the long term impacts they have
7) genetic drift
8) It occurs independently of mutation and recombination
9) gene
10) allele
Types of Natural Selection
1) In a population of lizards, 25 percent have dark coloring and 75 percent have light coloring. Over time, the environment where the lizards live becomes forested. The dark lizards can hide more easily than the light lizards because they blend in with the tree trunks. The lizard population changes into 80 percent dark-colored lizards and 20 percent light-colored lizards.What is this an example of? *
disruptive selection
natural selection
genetic mutation
genetic drift
2) This picture illustrates what type of selection? *
Captionless Image
sexual
disruptive
directional
stabilizing
3) In a population of woolybeasts, individuals with long snouts tend to survive better on an island that has burrowing termites. Over time, the woolybeast population consists of individuals with extremely long snouts. This is an example of: *
stabilizing selection
directional selection
disruptional selection
allopatric speciation
4) In a certain population, disruptive selection is occurring. In this population, which is most likely to survive?
organisms with average traits
organisms with extreme traits
organisms that sexually select
organisms that are small
GMO's
5) GM foods look and taste the same as traditional foods and crops. The only difference is that a GM plant has... *
Fewer calories
the addition of specific minerals
bacterial growing inside them
foreign genes with traits that improve something about the plant
6) A con of GMOs is that
they are creating herbicide tolerant crops.
there is higher crop production.
they require fewer materials to grow crops
there is inefficient research to know the long term impacts they have.
Genetic Drift
7) Rapid random changes in gene pool frequencies occurring in a small population are likely due to: *
genetic drift
founder principle
bottleneck effect
natural selection
8) Which of the following statements about genetic drift is true? *
It has its greatest effect on gene pool frequencies in large populations.
It occurs independently of mutation and recombination.
It is due to mutation rather than natural selection.
Genetic Variation- Alleles & Genes
9) A segment of DNA that has the ability to code for a specific trait. *
gene
allele
chromosome
chromatid
10) A variety or form of a gene. *
trait
gene
allele
DNA
ANSWER IN A LIST
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1 answer