Biology High School

Q - Describe the Mitoses with the help of diagram. write its different phares and explain them.​

Answers

Answer 1

Answer:

Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent.

Mitosis occurs in somatic cells of plants and animals. In this cell division, the two daughter cells have the same number of chromosomes as that in the parent cells.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

1.Prophase:-

It is the first visible stage in karyokinesis. The chromosomes appear as long coiled threads called chromatids. The chromatin becomes shorter, thicker and visible due to the condensation of DNA. The chromatins are now called chromosomes. Stainability of nucleus increase. Each chromosome starts to splits longitudinally into two sister chromatids. These sister chromatids are attached to each other at the centromere. The nuclear membrane and nucleolus start to disappear and by the end, it will be completely disappeared.

ii. Metaphase:-

Nuclear membrane and nucleolus completely disappears and simultaneously appearance of spindle fibers. Spindle fibers are attached to the centromere of a chromosome. The chromosomes are arranged on the equatorial plane. The process of gathering of chromosomes in equator is called congressional and plate formed is called metaphasic plate.

iii. Anaphase:-

The centromere of each chromosome splits into two sister chromatids and forms two daughter chromosomes. The daughter chromosomes are pulled towards the poles due to the contraction of spindle fibres and stretching of interzonal fibers. During polar movement, the chromosomes show different shapes i.e. J, U, V, L or I shaped in appearance. At the end of anaphase, each pole will get one set of daughter chromosomes. It is the shortest phase and is also known as a migratory phase.

iv. Telophase:-  The daughter chromosomes reach respective poles and uncoil and become thin, long and visible. The spindle fibres start disappearing and finally disappear. The nuclear membrane and the nucleolus reappear.

Two nuclei are formed at the end of telophase. Both the nuclei have the same number of chromosome as the parent cell. It is the last visible stage of karyokinetic and is also known as reorganization phase.

It is followed by cytokines or division of cytoplasm.

Explanation:

Q - Describe The Mitoses With The Help Of Diagram. Write Its Different Phares And Explain Them.

Related Questions

Which surface of the fern is shinier? Why?

Answers

The upper surface of the fern is more shinier than the lower surface.

The light-tolerant side of the leaf is also shiny, and this is because of a thick waxy cuticle. The shade-tolerant side of the leaf also has a cuticle but if we follow it logically, the light-tolerant side of the leaf needs more protection from heat evaporation because it's always being hit by light.

Tetracycline is an antibiotic that inhibits bacterial protein synthesis without killing the bacterial cell. This antibiotic can be classified as ________.

Answers

Tetracycline is an antibiotic that inhibits bacterial protein synthesis without killing the bacterial cell. This antibiotic can be classified as tetracycline antibiotics

The punctuated equilibrium model for the pace of evolution assumes


A
B
C
D

Answers

answe would be b d ,

In what order is the cell cycle?

Answers

Answer:

The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.

Answer:

THE CELL CYCLE:
-increases in size (gap 1, or G1, stage)

-copies its DNA (synthesis, or S, stage)

-prepares to divide (gap 2, or G2, stage)

-divides (mitosis, or M, stage).





Explanation:

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#TheWizzer

Complete the sentence. The author MAINLY explains the importance of wind, nuclear and solar energy by.

(A) emphasizing that these energy sources can only be created over millions of years.

(B) explaining how these energy sources are in danger of running out quickly.

(C) highlighting that these energy sources have been used since ancient times.

(D) suggesting that these energy sources can be used instead of burning fossil fuels.

Answers

The author explains MAINLY the importance of wind, nuclear and solar energy. suggesting that these energy sources can be used instead of burning fossil fuels.

What are renewable energies?

Renewable energies are energies resulting from renewable resources, that is, they are inexhaustible, such as

HydroTidalGeothermal

and new emerging energies, such as

SolarWind and Biomass energy.

With this information, we can conclude that the author explains MAINLY the importance of wind, nuclear and solar energy. suggesting that these energy sources can be used instead of burning fossil fuels.

Learn more about energies in brainly.com/question/1932868

Methyl mercury is a toxic chemical that is formed when mercury is combined with water.
Methyl mercury accumulates in the tissues of organisms, and the concentration increases at
each trophic level. Which population of organisms would be most harmed by an increase in
mercury content?
A
B
Iake-bottom plants
photosynthetic microorganisms
carnivorous fish
С
D
herbivorous crustaceans

Answers

"С" (and any subsequent words) was ignored because we limit queries to 32 words

1. Look at this image and state the biotic and abiotic factors:​

Answers

Answer:

the water is abiotic and trees and the grass is biotic

Plants allows gas exchange and many other functions to help the ecosystem. Correctly
match the words on the with the explanations.


Words:

Guard Cells

meristematic tissue

root hairs

xylem

Phloem



Possible explanations:

Growing sections

increases surface area for water absorption

open and close to allow gas exchange

vascular tissue for movement from roots to leaves

vascular tissue for movement from leaves to roots

Answers

Answer:

xylem → vascular tissue for movement from roots to leaves

phloem → vascular tissue for movement from leaves to roots

Root Hair → increases surface area for water absorption

Meristematic tissue → Growing Sections

Guard Cells → open and close to allow gas exchange

Explanation:

The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.

Root hairs increase the surface area for the absorption of water and minerals from the soil.

Meristem is the name of the specific area where plant growth occurs.

Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.

Explanation:

What is the current level of deforestation in the United States and how does it compare to developing countries?

Answers

United States Deforestation Rates & Statistics | GFW. In 2010, United States had 252Mha of natural forest, extending over 29% of its land area. In 2020, it lost 1.59Mha of natural forest, equivalent to 683Mt of CO₂ of emissions

lab: Using a compound microscope

Answers

What is the question exactly??

What kind of cells have a cell wall? what is the purpose of a cell wall?.

Answers

A cell wall is a fairly rigid layer surrounding a cell located outside of the plasma membrane that provides additional support and protection. They are found in bacteria, archaea, fungi, plants, and algae. Animals and most other protists have cell membranes without surrounding cell walls.

The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.

PLSSS HELP WILL MARK BRAINLIEST!!

Answers

Answer:

Archebacteria and Eubacteria

Explanation:

Hope this helps.

Answer:

Eubacteria (first option) & Archaebacteria (fourth option)

Explanation:

Eubacteria & Archaebacteria consist of the prokaryotic organisms.

Prokaryotes are unicelluar organisms that lack the nucleus & other organelles that are bound with the membrane.

Hope it helps ⚜

What can you
say to back the claim that the fossil record
supports the theory of evolution?

Answers

Answer:

Fossils show the progression of animals through million of year.

Explanation:

Fossils are the primary evidence of the theory of evolution. You can carbon date them to see how old they are. You collect dna from them and compare them to modern animals. That is how we know the crocodiles haven't evolved much for millions of year.

Which of the following components of a nucleotide determines the type of nucleotide?
A. 5-carbon sugar
B. phosphate group
C. nitrogenous base

Answers

Answer:

I think B

Explanation:

I think because nucleotide is chonp

What does synovial fluid in the synovial cavity do?

Answers

The answer is b it allows bones to slide over each other without friction

5. Waves that can travel with or witout a medium are called mechanical *
(10 Points)
O True
O False

Answers

True. Mechanical waves form when a source of energy causes a medium to compress.

_____ is rapid speciation under conditions in which there is little competition.

Answers

adaptive radiation is the answer

What is the difference between amino acids and enzymes?.

Answers

Enzymes are proteins, which are large molecules made up of amino acid chains.
Amino acids are the fundamental components of proteins and enzymes. They can also be broken down for use in other things, such as DNA

Which statement is NOT true of mitosis?

A: It is a way old or dying cells can be replaced.
B: It takes an average of eight minutes for any cell to complete the process.
C: Daughter cells are identical to the parent cell.
D: Each daughter cell receives a full set of chromosomes.

Answers

Answer:

i think a

Explanation:

What theory of dreams states that dreams are the by-product of neural activity in the lower brain?.

Answers

activation-synthesis model

Do females inherit male chromosomes or just X chromosomes?.

Answers

In humans, females inherit an X chromosome from each parent, whereas males always inherit their X chromosome from their mother and their Y chromosome from their father.

What is the answrr for this please help meeeeee

Answers

Answer:

a baby boy

Explanation:

it is because

having child birth

gives birth to a baby boy or girl

Match the organism to the correct description.


1.

marmots


2.

mosses


3.

lynx


4.

Dung Cannon

-------------------------------------]

a. primary consumers



b. predators



c. producers



d. decomposers

Answers

Marmots is a primary consumer

Mosses are producers

Lynx is predator

Dung cannon is decomposers

Marmots is a primary consumer

Mosses are producers

Lynx is predator

Dung cannon is decomposers

Hope this helps.

Brainliest?

When pollen fertilizes another plant, the result is a

Answers

Cross-pollination. The key to increasing fruit harvests & growing new flowers.

If the parent cell has 5 chromosomes, how many chromosomes are in each daughter cell?

Answers

Answer:

23 chromosomes

Explanation:

Pls, choose me as brainliest!

Is every human body built exactly the same anatomically?.

Answers

Answer: Like with fingerprints, no two people have the same brain anatomy, a study has shown. This uniqueness is the result of a combination of genetic factors and individual life experiences.

Explanation: An example is the heart's circulatory system, where the vessel supplying blood to the posterior part, known as posterior descendant artery, stems from the right coronary artery in 80-85% of the cases, and from the left coronary artery in the remaining 15-20%. This is known as either right of left dominance

Which of the following best describes a characteristic that differentiates Animalia and Plantae? Animalia are eukaryotes and Plantae are prokaryotes. Animalia have radial symmetry and Plantae have bilateral symmetry. Animalia have cell walls and Plantae have cell membranes. Animalia are heterotrophs and Plantae are autotrophs.

Answers

Answer:

Animalia are heterotrophs and plantae are autotrophs

Explanation:

Animalia and Plantae are the major kingdoms that share similarities and differences. Animals are heterotrophs, though plants are autotrophs. Thus, option D is correct.

What are animals and plants?

Animals and plants are eukaryotic organisms that share many organelles and similarities. The animals have radial symmetry and cell membranes, whereas the plants exhibit bilateral symmetry and cell walls.

They both differ in being heterotrophs and autotrophs as animals are incapable of producing their own food while plants are autotrophic organisms that produce food through photosynthetic pathways.

Therefore, animals are heterotrophs and plants are autotrophs.

Learn more about animals here:

https://brainly.com/question/3628546

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Why do you think it is important for a cell to grow before it replicates its dna?.

Answers

Answer:

because existing cells divide to produce new cells

The structure of gamma hydroxybutyric acid, or GHB, is fairly close to the inhibitory neurotransmitter _____.

Answers

Answer

The structure of gamma hydroxybutyric acid, or GHB, is fairly close to the inhibitory neurotransmitter Gamma-aminobutyric Acid ( GABA ).

#CarryOnLearning

How long does it take for a egg to be created

Answers

Answer:

around 24-26 hours

A hen requires around 24-26 hours to produce an egg and after it is laid, the process starts all over again about 30 minutes later. The only reason to have roosters included among a flock of hens would be to produce fertilised eggs as part of breeding programs.

Answer:

around 24-26 hours

Explanation:

A hen requires around 24-26 hours to produce an egg and after it is laid, the process starts all over again about 30 minutes later.

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