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hammer [34]
3 years ago
8

Two strands of DNA are joined to each other or held together by

Biology
2 answers:
alekssr [168]3 years ago
4 0
This would be called hydrogen bonds since they are weak in terms of the strands unwinding to be continually read
skad [1K]3 years ago
3 0

two strands of DNA are held together by weak hydrogen bonds.

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2. Suppose that you and 19 of your classmates (giving a final population of 10 males and 10 females) are on a cruise, and your s
Trava [24]

Answer:

0.25%

Explanation:

20 people start the new population. So there are 20 genes or 40 alleles for the recessive disorder phenylketonuria. 2 out of 40 alleles are recessive for the condition hence frequency of the allele = 2/40 = 0.05

Frequency of the allele does not change when the population increases so it is in Hardy-Weinberg equilibrium. According to it, if q is the frequency of recessive allele, q² = frequency of the recessive condition

Here, q = 0.05 So,

q² = (0.05)² = 0.0025

In percentage, it is 100 * 0.0025 = 0.25%

Hence, incidence of phenylketonuria in the new population is 0.25%

3 0
3 years ago
someone has their blood tested and finds that their blood sugar level is 138. this is equivalent to 1.38%. How much glucose is i
disa [49]

The amount of glucose in each ml of their blood will be 0.00138 g.

<h3>Blood glucose concentration</h3>

The concentration of glucose in the person's blood is 1.38%.

This means that there is 1.38 g of sugar per Liter of blood.

1 Liter of blood contains 1.38 g of glucose, and there is 1000 mL in 1 Liter of blood.

1000 mL contains 1.38 g

1 ml contains = 1.38 x 1 / 1000 = 0.00138 g

This means 0.00138 g of glucose will be present in every 1 mL of the person's blood.

More on blood glucose can be found here: brainly.com/question/8394646

#SPJ1

3 0
2 years ago
What determines what types of organisms can survive and thrive in an ecosystem?
prisoha [69]

natural selection, bc it is the process whereby organisms better adapted to their environment tend to survive and produce more offspring

4 0
3 years ago
Read 2 more answers
What are three examples of protists?
Cerrena [4.2K]

Answer:A,B,C

Explanation:

5 0
2 years ago
The smallest portion of the human brain is the cerebrum. true or false
Savatey [412]
That's false, it's the pons :)
3 0
3 years ago
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