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3 years ago

Which way do the nitrogenous bases in dna pair up?

Biology

2 answers:

muminat3 years ago

7 0

I think the answer would be C. A and T; G and C

Hitman42 [59]3 years ago

5 0

It would be C because A is adenine and T is thymineand G is guanine and C is cytosine

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small group of 100 people decide to isolate themselves from the world and move to a small and remote deserted island. Out of thi

irina [24]

Answer:

Frequency of p $= 0.684$

Frequency of p $= 0.316$

Number of individuals with homozygous dominant (AA) $= 47$

Number of individuals with heterozygous (Aa) $= 43$

Number of individuals with homozygous recessive (aa) $= 10$

Explanation:

Out of 100 people, 10 have albino skin (aa)

So, the frequency of homozygous recessive individuals $(q^{2})$ is $\frac{10}{100} = 0.1$

Now, q will be

$= \sqrt{q^{2} } = \sqrt{0.1} \\= 0.316$

As per Hardy Weinberg's equation -

$p + q = 1$

Substituting the value of q in above equation, we get -

$p + 0.316 = 1p = 1 -0.316\\p = 0.684$

Now the frequency of homozygous dominant (AA) will be

$p^{2} = 0.684^{2} \\= 0.467$

Hence, out of 100 people $0.467 * 100 = 46.7 or 47$ people are homozygous dominant (AA)

Like wise out of 100 people $0.1 * 100 = 10$ people are homozygous recessive (aa)

As per As per Hardy Weinberg's equation-

$p^{2} + q^{2} + 2pq = 1\\$

Substituting the values in above equation, we get -

$0.467 + 0.316 + 2pq = 1\\2pq = 1 -( 0.467+ 0.1)\\2pq = 0.433$

So, out of 100 people $0.433 * 100 = 43.3 or 43$ people are heterozygous (Aa)

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3 years ago

Difference between a cockroach and a Grasshopper

tester [92]

Explanation:

r:grasshoppers and cockroaches different in colour, habitat, and body mechanism .

Explanation: grasshoppers coluor range is green while cockroaches colour is redishBrown

Grasshoppers habitat is grass while cockroaches habitat is watery (wet) and dirty places.

Theses are observable differences.

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2 years ago

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Babies, especially those who are at least 4-6 months old, have the tendency to explore objects by touching and holding them, and putting them in their mouth. By this time, it is very important to keep small objects out of their reach so that accidents can be prevented.

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3 years ago

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Describe what scientists can learn about the past by studying fossils.

Nonamiya [84]

they could possibly learn the climate the animal was from or even relative dating & absolute age

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3 years ago

The ligation you carried out in Laboratory 3 can result in a number of plasmids, but none of these have been replicated in a bac

Ipatiy [6.2K]

Nicked circle is the reason.

Explanation:

During recombinant DNA technology the gene of interest is ligated to plasmid DNA by excision with molecular scissors or endonuclease enzyme and ligated with enzyme ligase.

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The ligation in the plasmid did not occur properly hence the replication is interrupted hence no new plasmids with gene of interest replicated in the ligation carried out.

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3 years ago