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Juli2301 [7.4K]
3 years ago
7

Which enzyme is responsible for adding nucleotides to the growing DNA molecule?

Biology
1 answer:
luda_lava [24]3 years ago
4 0
There is an enzyme called polymerase.
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Name two general functions of connective tissue.
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Indicate the expected number of Barr bodies in interphase cells of individuals with Klinefelter syndrome; Turner syndrome; and k
madreJ [45]

Answer:

Barr bodies are small bodies that are dark staining bodies that show the inactivated X chromosome, these sex chromatin bodies attach to the membrane of the nucleus of interphase cells.

One less of the total number of X-chromosome (n-1) represents the number of Barr bodies.

Then,

The number of Barr bodies with Klinefelter would be:

Klinefelter (47,XXY): (n-1) = (2-1) = 1 Barr body as here two X chromosome present.

Similarly, for

Turner (45,XO): (n-1) = (1-1) = 0 Barr bodies (X chromosome = 1)

Now, as per the question, the bar bodies for karyotypes given

47,XYY: (n-1) = (1-1) = 0 Barr bodies

47,XXX: (n-1) = (3-1) = 2 Barr bodies

48,XXXX: (n-1) = (4-1) = 3 Barr bodies

7 0
3 years ago
Why do leukocytes have a nucleus
ella [17]

Answer:

so they can squeeze through blood vessels more quickly.

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Some white blood cells have nuclei that are lobed, or separated into pieces, Other white blood cells act as factories making anti-germ weapons and need big nuclei to store the DNA to make those weapons.

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Where in a plant cell does the calvin cycle take place?
Evgesh-ka [11]

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It takes place in the Stroma

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