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What is polyploidy and aneuploidy?...

What is polyploidy and aneuploidy?

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### Step-by-Step Solution: 1. **Definition of Polyploidy**: - Polyploidy refers to a condition in which an organism has more than two complete sets of chromosomes. - For example, while most organisms are diploid (having two sets of chromosomes), polyploid organisms can have three (triploidy), four (tetraploidy), five (pentaploidy), or even more sets of chromosomes. 2. **Occurrence of Polyploidy**: - Polyploidy is commonly observed in certain groups of organisms, particularly in amphibians and fishes. ...
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What is polyploidy ? Give one example of a polyploid species.

Why is autopolyploidy termed intraspecific polyploidy and allopolyploidy as interspecific polyploidy Comment.

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Aneuploidy which occurs due to loss of a complete homologous pair of chromosomes is :

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Change in sequence of nucleotide in DNA is known as ...... .

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Substitution of a purine with another purine is known as ...... :

Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Which is the main category of mutation ?

MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-REVISION EXERCISES (SHORT ANSWER TYPE-I(A. QUESTIONS FROM STATE BOARD EXAMINATIONS))
  1. What will be the phenotypes of F(1) generation when normal vision man ...

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  2. What will be the phenotypes of F(1) generation if normal vision man (X...

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  3. What is polyploidy and aneuploidy?

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  4. Name two sex linked diseases.

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  5. How did Mendel make sure that the pea plants were true breeding?

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  6. How is Down's syndrome produced?

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  7. Define the term co-dominance with one example.

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  8. What is incomplete dominanace ?Give one example.

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  9. Who rediscovered Mendelism?

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  10. Stydy the following cross and answer the questions. (a)Write the ...

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  11. Observe the figures and answer the questions. (a)Identify the sy...

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  12. Write the cuase and two symptoms of Klinefelter's syndrome.

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  13. What are multiple alleles?Give one example.

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  14. Differentiate between back cross and test cross.

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  15. What are point mutations?Give one example of point mutations

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  16. Differentiate between homozygous and heterozygous organisms.

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  17. What is pleiotropy ?Give one example?

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  18. What is sex-determination?Explain XX and XY type of sex determination.

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  19. What is back cross?Explain with example.

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  20. What is co-dominance ?Explain it by citing a suitable example.

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