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Nikitich [7]
3 years ago
13

If the average length of a double helix in human chromosome is 3.9 cm, approximately how many base pairs are present in such chr

omosome?
Biology
1 answer:
ikadub [295]3 years ago
8 0

Answer:

The average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs

Explanation:

Lenght of DNA = number of base pairs * distance between consecutive base pairs

The distance between two consecutive base pairs bonded by hydrogen bonds is 0.34 nm.

If the average length of a double helix DNA molecule in human chromosome is 3.9 cm, the average number of base can then be calculated using the formula below:

Average number of base pairs = length of DNA ÷ distance between consecutive base pairs

Average number of base pairs = 3.9 cm/ 0.34 nm = 0.039 m/ 0.00000000034 m

Average number of base pairs = 114705882.4

Therefore, the average length of a double helix in human chromosome whose length is 3.9 cm has approximately 114.7 million base pairs

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Answers and Explanation:

A. This would likely be bryophytes, which are also seedless plants; however, unlike pteridophytes, bryophytes are nonvascular.

B. The two types of plants with seeds are gymnosperms and angiosperms. Gymnosperm applies here because angiosperms have multiple sub-categories.

C. This would be angiosperm, which is a type of flowering plant with seeds. Unlike gymnosperms, angiosperms have flowers; gymnosperms have cones.

D. Dicots is the answer; angiosperms are made up of two different categories of flowering plants: monocots (already provided) and dicots.

Hope this helps!

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3 years ago
Which of the following is NOT an adaptation of a leaf for gas exchange?* A)large surface area of mesophyll cells B) interconnect
77julia77 [94]

D) THICK WAXY CUTICLE

The leaf have adaptations in order to do gas exchange, which are the follwings:

-Large surface area of mesophyll cells

-Interconnecting air spaces in mesophyll

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A thick waxy cuticle is NOT an adaptation because the waxy cuticle is not thick, is thin, in order to have a short distance for the carbon dioxide to diffuse into the cells.

8 0
1 year ago
Living in urban environments can influence an individual's behavior
EastWind [94]

Answer:

True.

Explanation:

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5 0
4 years ago
Which of the following is not an example of an abiotic factor?
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Yeah yeah so :D,

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the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.

3 0
3 years ago
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