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Why is mitosis called equational division?
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Why is mitosis called equational division?

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Book:

Modern ABC Biology Class 11 Part 1 (Modern ABC)

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Because it keeps the chromosome number constant and genetic stability in the daughter cells.
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Practice questions from Modern ABC Biology Class 11 Part 1 (Modern ABC)

Question 1
Easy
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Views: 5,548

Give the terms for nuclear division and cytoplasmic division.
Topic

Topic:

Cell Cycle and Cell Division

Book

Book:

Modern ABC Biology Class 11 Part 1 (Modern ABC)

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Question 2
Easy
Views

Views: 5,456

Synthesis of RNA and proteins takes place in :
  1. (a) M-phase
  2. (b) S-phase
  3. (c) -phase
  4. (d) and -phases
Topic

Topic:

Cell Cycle and Cell Division

Book

Book:

Modern ABC Biology Class 11 Part 1 (Modern ABC)

View 2 solutions

Question 3
Easy
Views

Views: 5,873

During phase of cell division :
  1. (a) RNA and proteins are synthesized
  2. (b) DNA and proteins are synthesized
  3. (c) Cell prepares for cell division
  4. (d) Cell undergoes duplication
Topic

Topic:

Cell Cycle and Cell Division

Book

Book:

Modern ABC Biology Class 11 Part 1 (Modern ABC)

View 4 solutions

Question 4
Easy
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Views: 5,862

Which of the following events takes place during diplotene of Prophase-I of meiosis?
  1. (a) Compaction of chromosomes
  2. (b) Formation of synaptinemal complex
  3. (c) Formation of recombinational nodules
  4. (d) Dissolution of synaptinemal complex
Topic

Topic:

Cell Cycle and Cell Division

Book

Book:

Modern ABC Biology Class 11 Part 1 (Modern ABC)

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Practice more questions from Cell Cycle and Cell Division

Question 1
Easy
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Views: 5,168

A cell in prophase of mitosis can be distinguished from a cell in prophase-I of meiosis by
  1. The presence of only half as many chromosomes in the meiotic cell
  2. The formation of tetrads in the meiotic cell
  3. The presence of twice as many chromosomes in the meiotic cell
  4. None of the above
Topic

Topic:

Cell Cycle and Cell Division

View solution

Question 2
Medium
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Views: 5,517

During meiotic division, the
  1. Homologous chromosomes are separated
  2. The linkage is disturbed
  3. The homologous chromosomes do not segregate
  4. All of the above
Topic

Topic:

Cell Cycle and Cell Division

View 2 solutions

Question 3
Easy
Views

Views: 5,676

Colchicine arrests spindle at
  1. Anaphase
  2. Prophase
  3. Telophase
  4. Metaphase
Topic

Topic:

Cell Cycle and Cell Division

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Question 4
Easy
Views

Views: 5,742

When, during the meiotic division, do the centromeres divide
  1. Diplotene
  2. Metaphase–I
  3. Pachytene
  4. Anaphase–II
Topic

Topic:

Cell Cycle and Cell Division

Book

Book:

Universal Self Scorer Biology (Universal)

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Practice questions on similar concepts asked by Filo students

Question 1
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Identify the product marked by i) & ii) in the following pathway
a. i) 2-phosphoglycerate (ii) Acetyl CoA b. i) Phosphoenol pyruvate ii) Ethyl alcohol c. i) Phosphenol pyruvate ii) Citric acid d. i) Phosphoenol pyruvate ii) Acetyl CoA
Topic

Topic:

Energy and respiration

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Question 2
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Views: 5,471

2.1.2 Eubacteria There are thousands of different eubacteria or 'true bacteria'. They are characterised by the presence of a rigid cell wall, and if motile, a flagellum. The cyanobacteria (also referred to as blue-green algae) have chlorophyll similar to green plants and are photosynthetic autotrophs (Figure 2.2). The cyanobacteria are unicellular, colonial or filamentous, freshwater/marine or terrestrial algae. The colonies are generally surrounded by gelatinous sheath. They often form blooms in polluted water bodies. Some of these organisms can fix atmospheric nitrogen in specialised cells called heterocysts, e.g., Nostoc and Anabaena. Chemosynthetic autotrophic bacteria oxidise various inorganic substances such as nitrates, nitrites and ammonia and use the released energy for their ATP production. They play a great role in recycling nutrients like nitrogen, phosphorous, iron and sulphur. Heterotrophic bacteria are most abundant in nature. The majority are important decomposers. Many of them have a significant impact on human affairs. They are helpful in making curd from milk, production of antibiotics, fixing nitrogen in legume Figure 2.2 A filamentous blue-green algae - Nostoc Rationalised 2023-24 14 BIOLOGY Figure 2.3 A dividing bacterium roots, etc. Some are pathogens causing damage to human beings, crops, farm animals and pets. Cholera, typhoid, tetanus, citrus canker are well known diseases caused by different bacteria. Bacteria reproduce mainly by fission (Figure 2.3). Sometimes, under unfavourable conditions, they produce spores. They also reproduce by a sort of sexual reproduction by adopting a primitive type of DNA transfer from one bacterium to the other. The Mycoplasma are organisms that completely lack a cell wall. They are the smallest are pathogenic in animals and plants.
Topic

Topic:

Structural Organisation in Plants and Animals

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Question 3
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Views: 5,845

this is part of one exercise, could you please answer all parts ! 11.We are currently living unsustainably and human are negatively impacting renewable resources because we are using up these valuable resources faster than natural processes can renew them. In what ways are human impacting forests? In what ways are human impacting fresh water? Describe what eutrophication is. 12.Human activities have also impacted biodiversity and ecologists believe that we are pushing species toward extinction at an alarming rate.What four factors have been identified that have contributed to a loss of biodiversity? 13.Piants that produce their own food are known as producers or 14.Organisms that feed on other organisms are known as consumers or 15.Organisms that consume plants are known as 16.Organisms that consume other animals are known as 17.Organisms that consume both plants and animals are known as 18.Bacteria and fungi are known as organic material in the soil known as detritus. because they feed on decaying 19.What is a trophic level?Plants(producers)would occupy the trophic level. Herbivores,also known as primary would occupy the trophic level while carnivores,also known as secondary would occupy the trophic level.Tertiary consumers would occupy the trophic level. 20.The amount of available energy at one trophic level is not all passed to the next trophic level as a significant portion of energy is lost due to cellular respiration, waste production and death of organisms.
Topic

Topic:

Biology

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Question 4
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Views: 5,350

 Trypsinogen is produced bya.  Liver  b.  Duodenum c.  Stomach d. Pancreas
Topic

Topic:

Human Physiology

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Question Text
Why is mitosis called equational division?
TopicCell Cycle and Cell Division
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes85