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How Are Sex Chromosomes Significant? - Biology

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प्रश्न

How are sex chromosomes significant?
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उत्तर

Sex chromosomes are significant as they determine the sex of an individual.
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पाठ 2: Structure of Chromosomes - Exercise 1 [पृष्ठ २०]

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फ्रँक Biology II [English] Class 7 ICSE
पाठ 2 Structure of Chromosomes
Exercise 1 | Q 11 | पृष्ठ २०

संबंधित प्रश्‍न

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong

Centrosome.Cell wall, Cell membrane, Large vacuoles


What are genes? 


Mention whether the following statement is (T) Or (F). Give reason in support of your answer. 

The unfertilized human egg has half the number of chromosomes of the body cells. 


Chromosomes are mainly made up of ______.


Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________


Choose the correct answer:
Sex of an individual is determined by ____________


What are chromosomes?


Why gametes have a haploid number of chromosomes?


Give Technical Terms

The stage at which chromosomes occurs reach the opposite poles.


Give Technical Terms

The stage at which the formation of chiasmata occurs.


Complete the following sentence with appropriate word  :

The pairing of homologous chromosomes is called _______.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

Chromosomes other than sex-chromosomes are autonomous.


Name the following:

A specific part of a chromosome that determine hereditary characteristics.


Complete the following sentence with appropriate word:

The chromosomal theory of inheritance was proposed by ____________in 1902.


Compare X chromosome and Y chromosome.


An inheritable change in the amount or the structure of a gene or a chromosome is called ______.


Which of the following type of chromosomes has only one telomere?


Differentiate between X-chromosome and Y-chromosome with reference to –

  1. length of non-homologous regions
  2. type as per the position of the centromere

After a mitotic cell division, a human female cell will have ______.


Define the following term:

Chromatid


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