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NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Importance and Snapshot of Cell Cycle and Cell Division - Study ref# 764

Introduction: Are you aware that all organisms, even the largest, start their life from a single cell? You may wonder how a single cell then goes on to form such large organisms. Growth and reproduction are characteristics of cells, in... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Importance and Snapshot of Cell Cycle and Cell Division - Study ref# 765

Following sections must be covered to understand the Cell Cycle and Cell Division: 1. Cell Cycle 2. M Phase 3. Significance of Mitosis 4. Meiosis 5. Significance of Meiosis... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Target Setup for Cell Cycle and Cell Division - Study ref# 766

Student requires to achieve the following milestones to get better grip over Cell Cycle And Cell Division. The milestones / targets are as follows:Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chapter ... read more

NEET - Grade 11 - Biology - Biological Classification - Study ref# 3480

Explain reproduction in fungi. Answer: Reproduction in fungi can take place by vegetative means, like – fragmentation, fission and budding.Asexual reproduction is by spores called conidia or sporangiospores or zoospores and sexual reproduction is by ... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3537

How do algae multiply? What are the three types of fusion? Define each. How are algae beneficial? Answer: The algae reproduction by:–Vegetative method, asexual method and sexual method.Vegetative reproduction - In this method new plants are produc... read more

NEET - Grade 11 - Biology - Plant Kingdom - Study ref# 3541

Mosses help prevent soil erosion how? What are the two types of bryophytes? Describe reproduction in bryophytes with appropriate description of sex organs. Answer: Mosses have a great ecological importance as they help to prevent soil erosion. The p... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4221

How anaphase of mitosis differ from the anaphase I of meiosis? Answer: In anaphase I Kinetochore microtubules shorten, severing the recombination nodules and pulling homologous chromosomes apart. Since each chromosome only has one kinetochore, whole ... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4222

Differentiate between plant mitosis and animal mitosis? Answer: Plant MitosisAnimal MitosisOccurs in the maintenance region.Several places in the animal body.Cell shape is same prior to mitosis.Cells becomes spherical prior to mitosis.Centrioles are ... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4223

What is cytokinesis? How does it take place in animals and plant cells? Answer: Cytokinesis is the process in which the cell actually divides into two. With the two nuclei already at opposite poles of the cell, the cell cytoplasm separates, and the c... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4224

What is synapsis and synaptonemal complex? Answer: In prophase I of meiosis, the replicated homologous pair of chromosomes comes together in the process called synapsis, and SECTIONS of the chromosomes are exchanged. The synaptonemal complex is a pro... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4225

Write down the characteristic feature of Metaphase-I? Answer: Metaphase - I :There is formation of a bipolar spindle body.It has two types of spindle fibers:(a) Continuous fibers extending from pole to pole and(b) Chromosomal fibers extending f... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4226

Write down the significance of Mitosis? Answer: Significance of Mitosis:1) Growth: The number of cells within an organism increases by mitosis and this is the basis of growth in multicellular organisms.2) Cell Replacement: Cells are constant... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4227

Write a short note on karyotyping? Answer: Chromosome analysis or karyotyping is a test that evaluates the number and structure of a person's chromosomes in order to detect abnormalities. Chromosomes are thread-like structures within each cell nucleu... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4228

What abnormities can be determine using karyotyping? Answer: 1) extra chromosomes2) missing chromosomes3) missing portions of a chromosome4) extra portions of a chromosome5) portions that have broken off of one chromosome and reattached to another.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4229

Difference between Mitosis and meiosis? Answer: MitosisMeiosisAsexual ReproductionSexual ReproductionGenetically similar cellsCells are genetically differentNo crossing over.Crossing over takes place.Only one division takes placeTwo division takes pl... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4230

What is cell division? Answer: Cell division is a process by which a cell, called the parent cell, divides into two cells, called daughter cells. Cell division is usually a small segment of a larger cell CYCLE. In meiosis however, a cell is permanent... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4231

What is cell cycle? Answer: The cell CYCLE, or cell-division cycle, is the series of events that take place in an eukaryotic cell between its formation and the moment it replicates itself. These events can be divided in two main parts: interphase ... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4232

Name two major types of cell division? Answer: Two major types of cell division are Mitosis and Meiosis.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4233

Why mitosis is called equational division? Answer: In mitosis the number of chromosomes in parent cell and daughter cell are equal.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4234

What is metaphase plate? Answer: The plane of alignment of the centromeres of all the chromosomes at metaphase plate is known as metaphase plate.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4235

Name the stage of mitosis when the chromosomes commence their pole ward movement? Answer: During anaphase the chromosomes commence their pole ward movement.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4236

What indicates the beginning of diplotene? Answer: The chiasmata formation marks the beginning of diplotene.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4237

What are chiasmata? Answer: The X like configuration that helps in exchanging genetic materials between the chromosomes is known as chiasmata.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4238

What are dyads? Answer: During Cytokinesis two daughter cells are formed which are called dyads.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4239

What is the G0 phase of cell cycle? Answer: Certain cells which do not divide enters into an inactive stage called G0 phase.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4240

What are kinetochores? Answer: They are small disc shaped structure at the surface of the centromeres, they serve as the sites of attachment of the spindle fibers to the chromosomes.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4241

What is interkinesis? Answer: It is similar to short interphase between meiosis I and meiosis I I where no replication of DNA occurs.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4242

Mention the events that occurs during Diakinesis? Answer: The chiasmata move up to the terminals and the chromosomes are fully condensed. The nucleolus and the nuclear envelope disappear and the spindle formation starts.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4243

What is the significance of meiosis? Answer: It ensures the maintaince of constant chromosome numbers GENERATION after generation. The crossing over results in the variation of genetic characters in the off springs.... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4244

Write the key features of the cell in metaphase stage? Answer: The centrosomes are at opposite poles of the cell. The chromosomes, now at their most highly coiled and condensed, become arranged on a plane equidistant from the two poles called the met... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4245

Describe with diagram Leptotene and Zygotene? Answer: Leptotene (Leptonema): Chromosomes become visible as long slender threads bearing numerous bead-like nucleosomes (chromomeres). These are arranged in a linear fashion along their lengths. The n... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4246

Describe with diagram Diplotene, Pachytene and Diakinesis? Answer: Pachytene (Pachynema): This is the most important stage in meiosis in which a recombination of characters (genes) takes place through a phenomenon called crossing over.The chromoso... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4247

Describe the different stages of cell cycle? Answer: M phase The cell CYCLE of a typical eukaryotic cell has four phases. The relatively brief M phase consists of nuclear division (mitosis) and cytoplasmic division (cytokinesis). After M phase, the d... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4248

What are cis and trnas face of golgi? Answer: The golgi apparatus is usually located near the cell nucleus. It is composed of a series of layers called golgi stacks. Proteins from the ER always enter and exit the golgi apparatus from the same locatio... read more

NEET - Grade 11 - Biology - Cell Cycle and Cell Division - Study ref# 4249

Describe different phases of Second meiotic division? Answer: Second meiotic division (Meiosis-II)Second meiotic division is similar to mitosis i.e. it is an equational division in which there is duplication of the chromosomes. The two nuclei formed ... read more

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