मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (मराठी सेमी-इंग्रजी) इयत्ता ९ वी

The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.

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प्रश्न

The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.

पर्याय

  • Inheritance

  • sexual reproduction

  • asexual reproduction

  • chromosomes

  • DNA

  • RNA

  • gene

MCQ
रिकाम्या जागा भरा
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उत्तर

The component which is in the nuclei of cells and carries the hereditary characteristics is called a chromosome.

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पाठ 16: Heredity and Variation - Exercise [पृष्ठ १९३]

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बालभारती Science and Technology [English] Standard 9 Maharashtra State
पाठ 16 Heredity and Variation
Exercise | Q 1. c. | पृष्ठ १९३

संबंधित प्रश्‍न

During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.


Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________


Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________


Briefly mention the structure of a typical chromosome.

Choose the correct answer:
Chromosomes are thin and thread like at __________


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


State how does meiosis maintains chromosome number in a species.


Give Reasons for the following
The meiosis is called reductional division


Complete the following sentence with appropriate word  :

The spindle fibers are made of _______.


Multiple Choice Question:

The period between two successive mitotic divisions is


State the Location: Chromosomes


Write the functional activity of the following structure:

Spindle fibers


Name the following:

Pair of genes responsible for a particular characteristic.


Write the functional activity of the following structure:

Chromosomes


In humans, the sex chromosome complement is


Explain the structure of a chromosome.


Identify the TRUE statements with respect to aneuploidy.

  1. When the chromosome number is not the exact multiple of the haploid set, it is described as aneuploidy.
  2. Aneuploidy is only addition of one or more chromosome(s) to the total number of chromosomes in a cell.
  3. Aneuploidy is further classified as hypoploidy and hyperploidy.

Normally, genes occur in a pair of chromosome, but genes of X and Y chromosomes shows different gene loci indicating ______.


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