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State True or False (i) Chromosomal ab...

State True or False
(i) Chromosomal aberrations are commonly observed in cancer cells
(ii) Mutation is the only phenomenon that leads to variation in DNA.

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(i) True
(ii) False
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Mutation which commonly observed in cancer cells is

Select the correct statements :- (A) Mutation causes changes in the genotype and the phenotype of an organism. (B) Chromosomal aberrations are commonly observed in cancer cells. (C) Sickle cell anemia is a classical example of point mutation. (D) Deletions and insertions of base pairs of DNA causes frame shift mutations.

Refer the given statements (i) Incomplete or mosaic inheritance is an example of pre-Mendelian concept of blending inheritance (ii) Test cross is a special type of back cross (iii) Chromosomal aberrations are commonly observed in cancer cells (iv) Thalassaemia is a Mendelian disorder Which of the above statements are correct ?

State true or false : (i) Juvenile phase can be known as vegetative phase in all plants. (ii) Mango is polycarpic plant.

State True or False: During metaphase, chromosomes line up around the periphery of the cell.

State true or False : (i) Multiceiular organisms are immortal. (ii) Reproduction maintains continuity of species on earth surface

State true or false : (i) In the initial phase of absorbation of elements the ions are absorbed passively. (ii) Deficiency of manganese leads to inhibition of Ca translocation to shoot apex.

State True or False ? (i) A gamete carries only one factor of a character (ii) Starch synthesis in wrinkled seeded pea plants is most efficient (iii) Modified allele is always the recessive allele.

State true or false : (i) Sexual reproduction is always biparental (i) Sexual reproduction or may not be present in reproduction which produces variations (iii) Most common method of reproduction in lower plants is asexual one

State true or false : (i) Unisexual flowers occur in china rose (ii) Monoecious condition in lower plants is absent.

AAKASH INSTITUTE-PRINCIPLES OF INHERITANCE AND VARIATION-Try Yourself
  1. State True or False ? (i) A gamete carries only one factor of a ch...

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  2. (i) Human beings have three alleles for ABO blood grouping |A||B| an...

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  3. In a cross between two pea plants with genotypes TtYY (tall plant wit...

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  4. In an animal assume that rough coat (R ) is domiant over smooth coat (...

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  5. Find out the probable phenotypic ratio if a purple flowered pea plan...

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  6. Find out the number of phenotypes in F(2) generation if a character ...

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  7. State True or False (w.r.t Chromosomal theory of inheritance) (i) B...

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  8. Fill in blanks (w.r.t. experimental material used by Morgan) (i) Fem...

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  9. Two hetrozgous parents (AaBb) are crossed if the two local are comple...

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  10. State True or False : (i) In fruit fly genes of white eye and norm...

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  11. Which of the following statement for the grasshopper is incorrect ? ...

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  12. In third pregnancy of a human couple what will be probability of hav...

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  13. State True or False (i) In birds, both the sexes possess two sex chr...

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  14. Fill in the blanks (i) In chicks "" individual produces two differe...

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  15. State True or False (i) Chromosomal aberrations are commonly observe...

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  16. Fill in the blanks . (i) Deletions and insertions of base pair of D...

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  17. Study the given pedigree chart and answer the questions that follow ...

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  18. In the following pedigare chart, the mutant trait is shaded black. The...

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  19. Read the following paragraph carefully and find out the correct words ...

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  20. State True of False (i) Hetrozygous female for baemophilia may tran...

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