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Studentka2010 [4]
3 years ago
14

What composes the backbone, or side pieces, of the DNA molecule?

Biology
1 answer:
Orlov [11]3 years ago
4 0

Answer:

A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

You might be interested in
The use of which material can substitute for copper and reduce copper mine production?
Lesechka [4]

Answer:

Glass

Explanation:

Copper is a good conductor of electricity and this is why it is used in electrical equipment to transmit electrons with the least resistance. Cable conductors are made of copper and used to transmit data. Copper is now being replaced by optic fiber that is made of glass. Instead of using electrons, fiber optic transmits data using photons – which transmits more data rate than copper.

6 0
3 years ago
Read 2 more answers
Directions: Consider a pedigree that is tracking an autosomal recessive trait, where two recessive alleles (tt) result in the in
Talja [164]

Answer:

I think this should be the chart you were interested in...

Explanation:

                                          Individual             Shape in              shaded

                                          phenotype           pedigrees

Male with gen. TT             PTC taster             square                No

Male with gen. Tt              PTC taster             square                No

Male with gen. tt               Non-taster             square                Yes

Female with gen. TT        PTC taster              Circle                  No

Female with gen. Tt         PTC taster              Circle                  No

Female with gen. tt          Non-taster              Circle                 Yes

*gen- genotype

4 0
3 years ago
The demographic transition model show population change over time. It ilustrates how birth rate and death rate affect the total
Dmitry_Shevchenko [17]

Answer: In Stage 4 of the Demographic Transition Model birth rates and death rates are both low, stabilizing total population growth. The decline in both birth and death rates of most Stage 4 countries have been attributed to strong economies, highly educated citizens, ample healthcare systems, the migration of people from rural communities to cities (Bulgaria)

Explanation: i dont know if it's correct to them

8 0
3 years ago
A cross between two squash plants that produce yellow squash results in 124 offspring: 93 produce yellow squash and 31 produce g
iVinArrow [24]

Answer:

<h2>Both Yy</h2>

Explanation:

1. As  given here,

Total offspring are= 124;

that produce yellow squash= 93;

that  produce green squash= 31;

2. Let Y  for yellow producing squash and y for green squash;

Y is dominant over y.

3. Cross between two yellow squash producing plants

Genotype of parents = Yy and Yy

offspring = YY, Yy, Yy and yy,

as Y is dominant over y, so YY and Yy all produce yellow squash, and yy  produce green squash.

4. Their phenotypic ratio is 3:1 , as in question 93: 31

4 0
3 years ago
Read 2 more answers
Other than size, what are the two biggest differences between the megalodon shark and modern sharks?
nexus9112 [7]

Answer:

they are stronger and faster.

Explanation:

7 0
4 years ago
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