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3 years ago

Different btween bicuspid and tricuspid

1 answer:

3 0

Answer:The mitral valve is also called the bicuspid valve because it contains two leaflets or cusps. The tricuspid valve has three leaflets or cusps and is on the right side of the heart. It is between the right atrium and the right ventricle, and stops the backflow of blood between the two.

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Explanation:

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Which of the following best defines weather?

Citrus2011 [14]

Weather, as a noun, is defined as a tangible idea when using an assessment of the environment. Factors used for the assessment include temperature, barometric pressure, and wind chill. Weather, as a verb, is defined as the action of surviving a difficult situation. Another definition of the verb is wearing away or breaking down an object.

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3 years ago

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Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

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3 years ago

Why only female mosquito is responsible for the transfer of disease?

Sphinxa [80]

Explanation:

Issun Sengeki... Messatsu!

Alike of what the other guy said, only the female mosquito sucks blood.

Being that this is true, the mosquito(s) could have been in any environment. They could carry diseases and illnesses. On top of that, they can carry microscopic organism, unlike diseases, that can cause infections.

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Leaves attach to stems at nodes; the spaces between the nodes are internodes true or false

dalvyx [7]

I believe it's is true

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What method can scientists use to determine when the fossil above appeared on Earth?

Mice21 [21]

Answer:

Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.

Explanation:

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