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What Are Sex Chromosomes?

Chose the cor...

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Chose the correct option.
Statement 1: The chromosome number is constant for individuals of a species.
Statement 2: Chromosomes always occur in pairs, one pair from each parent.

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Statement 1: In diploid organisms, chromosomes occur in pairs.

Statement 2: In each pair, one chromosome is from the mother, and the other is from the father.

Q. Choose the correct statement regarding chromosomes.

Statement 1: The number of chromosomes in parents and offsprings of a particular species remains constant.

Statement 2: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half.

Q. Statement I: Synapsis is the process of pairing of homologous chromosomes.
Statement II: Crossing over occurs between sister chromatids of homologous chromosomes.
Which of the above statements are correct?

Name the following:

The technical term for a pair of corresponding chromosomes of the same size and shape, one from each parent.

Q. Select the statements that describe characteristics of genes:
(i) genes are specific sequence of bases in a DNA molecule
(ii) a gene does not code for proteins
(iii) in individuals of a given species, a specific gene is located on a particular chromosome
(iv) each chromosome has only one gene

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