Mitosis is a type of cell division that forms two genetically identical cells. It involves four stages viz; prophase, metaphase, anaphase, and telophase.

Considering a diploid (2n) cell with four (4) number of chromosomes.

Prophase- four duplicated chromosomes condense and pair up.

Metaphase- four chromosomes line up at the cell plate or equator in order to get separated.

Anaphase- the sister chromatids are pulled apart by the spindle microtubules

Telophase: the chromosomes recoil and organelles form at opposite poles of the cell.

At the end of cytokinesis, which is division of the cytoplasm, four chromatids are present in each daughter cell. The chromatids becomes individual chromosomes that retain the diploid (2n) chromosome number of four.

5 0

3 years ago

Question 22

S_A_V [24]

Carrier rna is the answer

7 0

2 years ago

The remains of living organisms are compressed and stuck together over time to form a rock. What type of rock is it?

inn [45]

Dead organisms when get compressed and stuck together inside soil for long time, gives rise to organic sedimentary rocks.

Option D

<u>Explanation:</u>

Organic sedimentary rocks are the types of sedimentary rocks generally formed in swamps or water logged areas over years where remains of living organisms like leaf or dead bodies of animals get petrified and stored under the soil for considerable amount of time and due to carbon deposition, it forms rocks. Most classical example of this type of sedimentary rocks is coal.

When a dead organism gets stuck and dies, firstly the body gets petrified. Then the minerals from surrounding soil and from the body itself gets to deposit in that place and slowly with time, it forms the rock.

7 0

4 years ago

What is the main difference between a mixture and a pure substance

Gre4nikov [31]

Well a mixture you have to use ingredients to make and a pure substance you don’t need ingredients to make

7 0

3 years ago