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3 years ago

What tool do geneticists use to predict the outcome of genetic crosses?

Biology

2 answers:

Oxana [17]3 years ago

8 0

Answer:

the answer is punnett square

LenaWriter [7]3 years ago

8 0

Yes the answer would be a punnet square

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14). During the early 1700’s, a small group of pacifist Protestants fled Germany to avoid religious persecution. This group, the

abruzzese [7]

A) In the Dunker population, the frequency of IB allele is 0.3 and the frequency of i allele is 0.4. In the general population, the frequency of IB allele is 0.1 and the frequency of i allele is 0.5.

If:
$I^{A}$ - the frequency of IA allele
 $I^{B}$ - the frequency of IB allele
 $i$ - the frequency of i allele

Then:
 $I^{A} I^{A}$ + $I^{A} i$ - the frequency of individuals with A blood type
 $I^{B} I^{B}$ + $I^{B} i$ - the frequency of individuals with B blood type
 $ii$ - the frequency of individuals with O blood type

Let's first take a look on the Dunker population:
$I^{A} = 0.3$
$ii=0.16
$

Since there is only one possible genotype for O individuals - ii - the frequency of the allele i is square root of the frequency of O individuals:
 $i= \sqrt{ii}$
⇒ $i = \sqrt{0.16}$
⇒ $i=0.4$

Now, we have the frequencies of two alleles ( $I^{A}$ and $i$ ). To calculate the frequency of $I^{B}$ allele, we will use the formula:
 $I^{A} + I^{B} + i = 1$
⇒ $I^{B} = 1- I^{A} - i$
⇒ $I^{B} = 1-0.3-0.4$
⇒ $I^{B} = 0.3$

Now, in the general population:
$I^{A} = 0.4$
$ii=0.25$

Similarly to the work for the Dunker population:
 $i= \sqrt{ii}$
⇒ $i = \sqrt{0.25}$
⇒ $i=0.5$

$I^{A} + I^{B} + i = 1$
⇒ $I^{B} = 1- I^{A} - i$
⇒ $I^{B} = 1-0.4-0.5$
⇒ $I^{B} = 0.1$


b) A founder effect is a result of geographical separation of a few individuals from the original population. Those founding individuals will form a new population. The Dunker population was not only geographically separated, but also genetically. The group interbreeding was present resulting in increasing those allele frequencies that were the most common in the founding population. In this case, the most individuals from the founding population had B blood type.

6 0

4 years ago

How is it possible for someone to put an ear to a wall and hear someone in the next room?

erik [133]

The answer is A. Sound can travel through matter (solids, liquids, and gases). Sound travels faster in solids, then slower in liquids and slowest in the air. When the person in the next room makes noise, the sound travels through the air in their room, through the solid wall and in the air in your room and into your ear.

5 0

3 years ago

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Which of the following does not rely on active transport to cross the cell membrane? A.calcium ions B.water molecules C.potassiu

shepuryov [24]

i think it is b becuase it gives a lot of infor mation

8 0

3 years ago

Even though scorpions are related to spiders, there are many differences between the two organisms. One difference is that scorp

denis-greek [22]

Answer:

The correct answer is - tissues.

Explanation:

The tissue is an organization of the cells to work together to perform a specific type of function in an individual organ or body system of an organism. The skin cells of the scorpion also organize together to play the role of hard covering that helps the scorpion to be protecting.

This organization of cells is known as carapace which is a tissue made up of cells together to protect scorpion as tissue is a group of similar cells working together.

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3 years ago

Enzymes are catalysts. This means that they are able to speed up chemical reactions.

larisa86 [58]

I think the correct answer from the choices listed above is option C. Enzymes are catalysts. This means that they are able to speed up chemical reactions. Also, they are not used up by reactions. They are not being consumed in the process. Hope this answers the question.

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3 years ago

Read 2 more answers