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  • 1 answers

Gaurav Seth 6 days, 14 hours ago

1. Apply the question to yourself

This is the best way to solve blood relation questions. Here you try and relate every statement to yourself. The starting name of the statement could be assumed as your name or you

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2. Break the question into very small parts

When the statement is very long, it can get confusing. So break down every statement in the question into sub statements and solve the question.
 

3. Do not assume the gender

Do not assume the gender of any person in the question just based on the names given in the question.
 

4. Draw clear diagrams as you solve

An easy trick to solve such questions with 100% accuracy is to draw a family try where people of the same generation are placed at the same level and the entire diagram is in the form of a hierarchy.

Indicate + for Male candidate
Indicate – for Female candidate
Indicate <=> for Couple
Indicate - - - - for Same Generation like brother - - - brother (or) sister - - - sister (or) sister - - -brother
Indicate–––––for Different generations like father–––––son (or) mother––––son (or) father––––daughter (or) Mother ––––– daughter

 

  • 1 answers

Gaurav Seth 1 week, 1 day ago

ANSWER

 

Let A and B start from point O. 

A goes 3 km North and then turns rights and covers 4 km

B turns right and walks for 5 km and then turns right and walks 3 km. 

So A and B are apart by 5+4 km = 9 km.

option A

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  • 1 answers

Shivam Singh 1 week, 2 days ago

Not confirmed
  • 0 answers
  • 2 answers

Vampire 6641 1 week, 2 days ago

Wow

Gaurav Seth 2 weeks, 2 days ago

According to the theory old cells split into new cells and the formation of new cells is known as cell division or cell production. This was firstly observed by Flemming in 1882 but an extensive in details was given by Belar in 1920.

Usually cell division is of three types:

(i) Amitosis (ii) Mitosis (iii) Meiosis

Amitosis: This cell division takes place in less developed cell of unicellular organism and firstly nucleus of the cell is divided and then later cytoplasm, ultimately two new cells are formed. In bacteria, blue-green algae, yeast, amoeba, protozoa etc this type of cell division takes place.

Mitosis: This cell division is also known as Somatic cell division in which two identical cells are produced. Although cell is divided but number of chromosomes remains the same and mitosis is a continuous process. Various phases like prophase, metaphase, anaphase, telophase, cytokinesis occur and cell divides itself stage by stage.

Prophase: First stage of mitosis.

- In all animal cells and in some plants like fungi and some algae.

- The centriole duplicates itself and divides two new centrioles (centrosomes) move to opposite ends of the cell (poles).

- The spindle fibres or series of fibres radiates from vicinity of each centriole towards the nucleus.

- Except fungi and some algae the spindle fibres develop without the presence of centrioles.

- The chromosomes which are already duplicated become shorten and thicken.

- Chromatids are the duplicated halves of each chromosome which are held together by the centromere.

- The nucleus and the nuclear membrane begin to disintegrate in the late prophase.

Metaphase:

- The pairs of chromosomes align themselves in such a way that the centre of the cell and each centromere becomes attached to one spindle fibre from each pole.

- The centromere divides and the separated chromatids become independent daughter chromosomes.

Anaphase:

- Spindle Fibres begin to shorten.

- This exerts a force on the sister chromatids that pulls them apart.

- Spindle fibres continue to shorten, pulling chromatids to opposite poles.

- This ensures that each daughter cell gets identical sets of chromosomes.

Telophase:

- The chromosomes decondense.

- The nuclear envelope forms i.e nuclear membrane forms around each new group of chromosomes.

- Daughter chromosomes reach the poles.

- Spindle fibres totally disappear.

Cytokinesis:

- After the division of nucleus, cytoplasm starts to divide.

- The original large cell becomes two smaller identical cells and each daughter cells take food, grows, being divided and the process continues.

- It maintains the continuity of metabolism by transmitting to the daughter cells.

- Plays significant role in wound healing, regeneration of damaged parts (like tail of lizard), the replacement of cells (the skin surface), and it may give rise to tumours or cancerous growth if uncontrolled process be occur.

*In mitosis it is also ensured that two daughter cells inherit the same number of chromosomes and hence have the same characteristics as the parent cell.

Meiosis: It is a special type of cell division that occurs in Sexually Reproducing organisms and thus gametes (*** cells) are produced. It consists two successive cell division that resembles like mitosis but chromosomes are duplicated only once. Thus, gametes have half the number of chromosomes normally found in the body cells. Two sub stages – meiosis I and meiosis II occur.

• Meiosis I: Can be broken down into four sub stages: Prophase I, Metaphase I, Anaphase I and Telophase I.

• Meiosis II: Can be broken down into four substages: Prophase II, Metaphase II, Anaphase II and Telophase II.

Meiosis I:

Prophase I: Most of the significant processes of Meiosis occur during Prophase I

- The chromosomes condense and become visible.

- The centrioles form and move toward the poles.

- The nuclear membrane begins to dissolve

- The homologous pair up, forming a tetrad

- Each tetrad is comprised of four chromotids.

- Homologous chromosomes will swap genetic material in a process known as crossing over which increase genetic diversity by creating four unique chromatids.

Metaphase I:

- Microtubules grow from the centrioles and attach to the centromeres where tetrads line up along the cell equator.

Anaphase I:

- The centromeres break, cytokinesis begins and homologous chromosomes separated but the sister chromatids are still attached.

Telophase I:

- Depend upon species the chromosomes may decondense and cytokinesis reches to its completion by creating two haploid daughter cells.

Meiosis II:

Prophase II:

- The nuclear membrane dissolves, centrioles form and move toward the poles.

Metaphase II:

-  Microtubules attach to the centromeres and grow from the centrioles and the sister chromatids line up along the cell equator.

Anaphase II:

- Cytokinesis begins, centromeres break and sister chromatids separate.

Telophase II:

- Depends upon species chromosomes may decondense, Cytokinesis reaches completion creating four haploid daughter cells.

  • 0 answers
  • 4 answers

Shivam Singh 1 week, 2 days ago

13 December

Dipanshu Kumar 2 weeks, 1 day ago

13 Dec 2020

Atul Singh 2 weeks, 6 days ago

13 Dec 2020

Preeti Yadav 2 weeks, 6 days ago

13 December
  • 3 answers

Sweetu Khandelwal 2 weeks, 2 days ago

I don't think After coming in 10th, someone's English can be so weak
Kaha se milega hame form ???

.. ..❤️ 3 weeks, 4 days ago

•Step 1: Obtain the Application form. •Step 2: Fill the Application form. •Step 3: Payment of Application Fee (If applicable) •Step 4: Submit the NTSE Application Form. Important dates for the academic year 2020-21. •NTSE ADMIT CARD- KEY DATES, SYLLABUS AND EXAMINATION PATTERN.✌️ Agar aapko english mein smj nahi aaya toh hindi mein batee...hum aapko..!!🤔
  • 2 answers

Anuj Kumar 4 weeks, 1 day ago

Aur culprit Ko cvnsvnz

Anuj Kumar 4 weeks, 1 day ago

fptji me j ki jagah par f aaega
  • 3 answers

Gulshan Kumar 1 week ago

H1/H2
Thank you for answering my question.

Anuj Mittal 1 month, 1 week ago

F= - 10 CM

H1 =2.5 CM

U = -30CM

{tex}{ 1\over F } = {1\over v } -{ 1\over u}{/tex}

  1/-10=1/v -1/-30

1/-10 +1/30  = 1/v

(-3+1)/30=1/v

-2/30 = 1/v

-1/15 =1/v

v = -15

position is on left side 15 cm away from the lens

{tex}{H2 \over H1 } = {v \over u}{/tex}      

H=  (-15*2.5)/-30

H= 1.25 cm

as it is positive so image is virtual and erect

  • 4 answers

Sourav Kumar 1 month ago

Example:- pond,dam etc

Sourav Kumar 1 month ago

The ecosystem which is formed or manufactured by human beings is known as artificial ecosystem.

Faizan Salmani 1 month, 1 week ago

Digrable and biodegraeble

Yogita Ingle 1 month, 1 week ago

An ecosystem which is created by human beings and did not exist naturally is artificial ecosystem.

Example- Forests, ponds are natural ecosystem and gardens, crop fields are artificial ecosystem.

  • 1 answers

Yogita Ingle 1 month, 1 week ago

The food chain starts with producers which produce their own food say microscopic phytoplankton. than comes the primary consumers which feed on the producers say tadpoles. than are the secondary consumer who feed on primary consumers say fishes. than finally the decomposers who feed on the dead bodies of these consumers say fungi. 

  • 4 answers
you're most welcome😊
Thank you for answering my question

Yogita Ingle 1 month, 1 week ago

The following points state functions and importance of WTO

(i) WTO deals with regulation of trade between participating countries.

(ii) WTO provides a forum for negotiations and for setting disputes.

(iii) It is also a centre of economic research and analysis.

(iv) It is an organisation that intends to supervise and liberalise international trade.

(v) It oversees the implementation, administration and operations of the covered agreements.

In brief, the World Trade Organization (WTO) is the only international organization dealing with the global rules of trade. Its main function is to ensure that trade flows as smoothly, predictably and freely as possible.
  • 2 answers

Vridhi Sharma 1 month ago

This exam is held in the first week of November ( phase1)

Dibyajyoti Mishra 1 month, 2 weeks ago

U can search it in google for more information...
  • 2 answers

Vridhi Sharma 1 month ago

Yes of course This exam is eligible for only 10 th standard student all over the india

Abhishek Singh 1 month, 2 weeks ago

Yes
  • 3 answers

Vridhi Sharma 1 month ago

Yes of course But delayed for December ☹️☹️☹️

Nandani Srivastava 1 month, 2 weeks ago

Thanks

Mohit Adoni 1 month, 2 weeks ago

Yes offcourse. But delayed till Dec
  • 1 answers

Ankur Arora 1 month, 2 weeks ago

fruit
  • 1 answers

123 Score 99.99 2 months, 1 week ago

We will get the centre
  • 1 answers

Yonit Tikawat 2 months, 1 week ago

VE12
  • 4 answers

Faizan Salmani 1 month, 1 week ago

In lock down 10: to 12:00 and 3 to 5pm easy and learning time

Ritesh Choudhary 2 months ago

15 hours

H.M. Madan 2 months ago

Morning 4 to 8

123 Score 99.99 2 months, 1 week ago

F

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