हिंदी

Mention, If the Following Statement is True Or False. If False Rewrite the Wrong Statement in Its Correct Form: Dna Has a Double-helical Structure.

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प्रश्न

Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

DNA has a double-helical structure.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

True

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अध्याय 2: Fundamentals of Genetics - True & False

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आईसीएसई Biology [English] Class 10 ICSE
अध्याय 2 Fundamentals of Genetics
True & False | Q 2

संबंधित प्रश्न

A heterozygous tall plant of pea is crossed with a dwarf plant of pea.

Calculate the phenotypic ratio of the progeny.


What is heredity?

What is a gene? How is it related to heredity?


 Give the significance of mutation.


Differentiate between genotype and phenotype.


Give Technical Term:

Differences occurring within offsprings of the same progeny.


Give Technical Term:

A twin consisting of a brother and a sister were born to a lady. What is the name of such a type of twins?


Complete the following sentence with appropriate word:

______is the hereditary unit.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

A female is responsible for the sex of the progeny.


Multiple Choice Question

Genetics is a branch of biology dealing with:


What is allelomorph?


Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.


A recessive factor is altered by the presence of a dominant factor.


______ type/s of gametes is/are expected to be formed by the organism with genotype AABBCC.


Identify the possible genotypic ratio in F2 generation if a plant producing red flowers (RR) is crossed with another plant of the same species that produces white flower (rr).


Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:

(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)


A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.


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