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What are chromosomes? OR What is chromos...

What are chromosomes? OR What is chromosome?

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What is a chromosome ?

True or False. If false, write the correct sentence Autosomes are chromosomes other than sex chromosomes.

Compare - X-chromosome and Y chromosome.

An organisms has two pair of chromosomes (i.e., chromosome number) Diagramatically represent the chromosomal arrangement during different phases of meiosis II.

What are chromosomal abnormalities?

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17and 18 chromosome-bearing organisms are:

Compare X and Y chromosomes.

While examining the mitotic stage in a tissue, one finds, some cells with 16 chromosomes and some, with 32 chromosomes. What possible reasons could you assign to this difference in chromosome number. Do you think cells with 16 chromosomes could have arisen from cells with 32 chromosomes or vice versa?

The chromosome in which the centromere is near one end of the chromosome is called ……….chromosome. metacentric acrocentric sub-metacentric telocentric

What are the roles of chromosomes in living organisms?

CHETANA PUBLICATION-INHERITANCE AND VARIATION-Exercise
  1. What are chromosomes? OR What is chromosome?

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  2. Phenotypic ratio of incomplete dominance in Mirabilis jalapa.

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  3. In dihybrid cross, F2 generation offsprings show four different phenot...

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  4. A cross between an individual with unkonwn genotype for a trait with r...

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  5. When phenotypic and genotypic ratios are the same, then it is an examp...

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  6. If the centromere is situated near the end of the chromosome, the chro...

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  7. Chromosomal theory of inheritance was proposed by ..........

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  8. If the genes are located in a chromosome as p-q-r-s-t, which of the fo...

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  9. Find the mis match pair :

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  10. A colourblind man maries a woman, who is homozygous for normal colour ...

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  11. Mendel performed experiment on .............

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  12. Which of the follwoing trait is dominant in Pisum sativum?

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  13. A cross between an individual with unkonwn genotype for a trait with r...

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  14. In dihybrid cross, F2 generation offsprings show four different phenot...

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  15. Emasculation is...........

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  16. When phenotypic and genotypic ratios are the same, then it is an examp...

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  17. A pea with yellow and round seeds is crossed with another pea plant wi...

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  18. When a single gene produces two effects and one of it is lethal then t...

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  19. When two genes control a single character and have cumulative effect t...

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  20. Genes located on the same locus but show different expression,

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  21. If the centromere is situated near the end of the chromosome, the chro...

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