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g100num [7]
3 years ago
7

What is a nondisjunction? what is a nondisjunction? an error in which a diploid cell or organism has an extra chromosome of one

type, producing a chromosome number of 2n + 1 none of the above an error in which a diploid cell or organism lacks a chromosome of one type, producing a chromosome number of 2n - 1 an error in cell division that causes homologous chromosomes or sister chromatids to move to t?
Biology
1 answer:
disa [49]3 years ago
6 0
Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatic. 
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Which of the following is often used to remove poisonous gases from industrial emissions before they are released into the atmos
Alenkinab [10]

Answer:

B.) Scrubbers

Explanation:

Scrubbers are used to remove poisonous gases from industrial emissions before they are released into the atmosphere.

These devices are air pollution control units in industrial power plants that uses liquids to absorb harmful gaseous industrial gases.

  • Some of these gases are carbon monoxide, nitrogen oxides.
  • This atomized liquid removes harmful gases
  • The waste gas is brought into close contact with the liquid.
  • Some of the gases will pass into the liquid.
  • They are very effective in removing polluting gases from wastes.
3 0
3 years ago
Which component of a Milankovitch cycle is related to periodic ice ages throughout Earth's history? A. Axial precession B. Apsid
Leviafan [203]

The answer is c because the precession of the ecliptic was component of a milankovitch cycle  and is related to periodic ice ages through out history

3 0
3 years ago
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Which of the following provides evidence for plate tectonics
Mnenie [13.5K]
I don't know what you the answers provided are if you can comment i'll be glad to help you :)
3 0
4 years ago
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A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur
mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

w=mg     ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

g=\frac{GM}{r^2}

where, g = acceleration due to gravity = ?m/s^2

G = Universal gravitational constant = 6.67\times 10^{-11}Nm^2/kg^2

M = mass of the planet = 5.97\times 10^{24}kg

r = distance of the person from the planet = 6.38\times 10^6m

Putting values in above equation, we get:

g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2

Putting this value in equation 1, we get:

w=65kg\times 9.782m/s^2=635.83N

Hence, the weight of the person above the surface of a planet is 635.83N.

7 0
3 years ago
Introns must be removed prior to translation of the mRNA. In addition, eukaryotic transcripts (mRNA) have to undergo two more st
Ivan

Eukaryotic transcripts (mRNA) have to undergo capping and splicing before it can be translated.

<h3>RNA processing:</h3>

1. An RNA transcript is first produced in a eukaryotic cell as a pre-mRNA, which needs to be converted into a messenger RNA (mRNA).

2. The RNA transcript is given a 5' cap at the start and a 3' poly-A tail at the end.

3. The process of splicing involves cutting out some RNA transcript segments (introns), then joining the remaining segments (exons) back together.

4. Some genes have the ability to alternate splices, which produces various mature mRNA molecules from the same beginning transcript.

The introns not only do not contain the information necessary to construct a protein, but they also need to be cut off in order for the mRNA to create a protein with the correct sequence. An mRNA with extra "junk" in it will be created if the spliceosome fails to remove an intron, and the translation process will result in the production of the incorrect protein.

Learn more about RNA transcript here:

brainly.com/question/13834206

#SPJ4

6 0
2 years ago
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