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Genetics

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Amari Huel

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Cards in this guide (12)
How does natural selection lead to evolution

a species can gradually change into new species

What is an adaptation

a camel has humps to store water

a rabbit that has fur that blends in with snow

a trait that makes an organism more likely to reproduce

What is emigration

Emigration is the act of moving out of a country.

It is distinguished from Immigration that is the act of moving into a new country.

What is the allele frequency

Allele frequency is the frequency (proportion) of alleles in a population. It can be expressed as a percentage or a decimal.

For example, suppose a population has 10 individuals and there are two alleles (A and a) of a gene. Suppose the individuals are as follows:

4 AA individuals = 8 A alleles

4 Aa individuals = 4 A alleles and 4 a alleles

2 aa individuals = 4 a alleles

So there are (8 + 4) = 12 A alleles in the population and (4 + 4) = 8 a alleles in the population.

The frequency of A alleles is therefore 12/20 = 0.6 or 60%.

The frequency of a alleles is 8/20 = 0.4 or 40%.

(Notice that the total number of alleles equals 1.0 or 100%.)

What question did Hardy and Weinberg want to answer

How does allele frequency change between generations?~

What is a reproductive strategy

The method an organism uses to produce offspring

the way that a species creates offspring

Ice floats on water because ice is less dence than water how helpful to fish that live in a lake

The ice that covers a lake actually insulates the deeper water preventing it from freezing too, this allows fish to continue to swim and feed during the winter.

Based on the information in the graph which region's population currently growing the least

Africa -apex

The graph below shows the population of mice in an ecosystem where the mice are not allowed to enter or leave. Which best describes the population at point C

The birthrate is higher than the death rate (APEX)

Which is a density dependent factor

Space apex

Which of these is one of the conditions for hardy-weinberg equilibrium

Mutations cannot occur - APEX

What concept of “contained in” includes which of the following Select ALL the correct responses

Select ALL the correct responses. The concept of “contained in” includes which of the following?

  • No additional interpretation or analysis is needed to determine the classification of the information.
  • Classified information is not clearly or explicitly stated in the source document.
  • Classified information comes from an authorized source into a new document.
  • A reader can deduce the classified information by performing additional interpretation or analysis.
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