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Oksi-84 [34.3K]
3 years ago
13

During meiosis I, the two kinetochores of sister chromatids fuse and kinetochore microtubules from one pole of the cell attach t

o the fused kinetochore. This is important because it ensures that during anaphase I
Biology
1 answer:
amm18123 years ago
8 0

Answer:

sister chromatids are pulled toward the same pole of the cell.

Explanation:

Meiosis can be defined as process where a single cell is divided twice in order to produce four cells( i.e sex cells which are; Sperm and Eggs) which contains half the original amount of genetic information.

Meiosis can be divided into nine different stages. when the cell divide for first time is referred to as *meiosis I* and the second time it divides it's referred to as meiosis II.

During Meiosis The cell divide twice to form four daughter cells, the daughter cells contains half the number of chromosomes of the parent cell( haploid).Our sex cell is produced by Meiosis.

During meiosis I, the two kinetochores of sister chromatids fuse and kinetochore microtubules from one pole of the cell attach to the fused kinetochore. This is important because it ensures that during anaphase I

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Which of the following is true about cells?
shtirl [24]

Answer:

D

Explanation:

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7 0
3 years ago
The nitrogen cycle is most directly dependent upon-
vovangra [49]

Answer:

B) Nitrogen-fixing bacteria and lightning

Explanation:

Nitrogen cycle is the natural process in which atmospheric nitrogen is converted into nitrite and nitrate with the help of bacteria.

Nitrogen cycle is directly dependent on nitrogen-fixing bacteria and lightning.

As bacteria are responsible for most of the chemical conversion in the nitrogen cycle such as nitrogen fixation (first step) is done by soil bacteria (Cyanobacteria) that form ammonia, which is toxic to plants; nitrification in which ammonia is converted into nitrites and nitrates with the help of Nitrobacter and denitrification bacteria involve Pseudomonas, and Achromobacter which convert nitrite and nitrate into nitrogen.

The lightning breaks nitrogen molecules and allow  it to combine with oxygen in atmosphere which further dissolve in rain and form nitrates.

Hence, the nitrogen cycle is most directly dependent upon nitrogen-fixing bacteria and lightning and the correct option is B.

5 0
3 years ago
Do capillaries transport blood from arteries to veins?
igomit [66]

Answer:

Capillaries connect the arteries to the veins. The arteries deliver oxygen rich blood to the capillaries, where the exchange for oxygen and carbon dioxide occurs.

Explanation:

Hope this helps!

8 0
3 years ago
Which of the following terms is used to describe the steady breeze of particles flowing out from the sun?
STALIN [3.7K]
<h2>Answer:</h2>

The term is <u>solar wind</u>.

<h2>Explanation:</h2>

The breezy particle which is produced from the corona region of the sun is called as Solar wind.  It is made up of electrons, protons and alpha particles with kinetic energy. Implanted inside the sunlight based breeze plasma is the interplanetary attractive field.  

The sun oriented breeze shifts in thickness, temperature and speed after some time as the sunlight changes. Its particles can get away from the Sun's gravity on account of their high vitality coming about because of the high temperature of the crown, which is caused due to source of origin called corona.

8 0
3 years ago
List the 3 types of cell junctions and state which is the most and least permeable.
Zanzabum
1) occluding junctions
2) anchoring junctions
3) communicating junctions
Occluding junctions do not totally seal the space between cells and the resulting permeability varies greatly.  I would say anchoring junctions are most likely with one of the other 2 junctions being least permeable.
4 0
4 years ago
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