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marusya05 [52]
3 years ago
9

20.

Biology
2 answers:
grin007 [14]3 years ago
7 0

Answer:

D. Sugars and phosphates

Explanation:

DNA or deoxyribonucleic acid which is a self-replicating material present in nearly all organisms and the constituent of chromosomes, It is also the carrier of the basic instructions of life!

We have a total of 23 chromosomes in our cells!

hope this helps

<h3>sincerely,</h3><h3>Ur cat friend kittylike11</h3>

xxMikexx [17]3 years ago
3 0

Answer:

Sugars and phosphates  

Explanation:

DNA is deoxyribonucleic acid.

The backbone is based on a repeated pattern of a sugar group (deoxyribose) and a phosphate group.  

The image below shows one straightened-out strand of DNA with a backbone of alternating sugars and phosphates.

A is wrong. There is no ribose in DNA.

B is wrong. The nucleic acids A, C, G, and T join one strand of DNA to the other.

C is wrong. There is no RNA in DNA.

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soldier1979 [14.2K]

Answer:

All the offsprings would be heterozygous purple colored flower

Explanation:

Given

Purple color flower is dominant over white color flower

Let the allele for purple color of flower be represented by "P"

and the allele for white color flower be represented by "p"

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PP * pp

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3 years ago
The presence of over 700 genes involved in height determination is an example of (a) ______________.
Ira Lisetskai [31]

The presence of over 700 genes involved in height determination is an example of a polygenic trait.

<h3>What is a polygenic trait?</h3>

A polygenic trait refers to a trait that is determined by multiple genes rather than by only one gene. This is opposite to a monogenic trait that is determined by only one gene.

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In humans, some examples of traits that are determined by multiple genes are:

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Answer:

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4 0
3 years ago
During respiration, a seed metabolizes sugars. what is the source of the sugar metabolized by the seed?
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3 years ago
Which descriptions are true regarding different muscle types? check all that apply. cardiac and skeletal muscles are striated. s
a_sh-v [17]
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3 years ago
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