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प्रश्न
State whether the following statement is true or false:
The dominant character masks the recessive character.
पर्याय
True
False
उत्तर
The dominant character masks the recessive character True.
APPEARS IN
संबंधित प्रश्न
The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratio as 1:2:1 unlike that the Mendel’s monohybrid F2 ratio. With the help of a suitable example, work out a cross and explain how it is possible.
The cross between two parents having one pair of contrasting characters
Give any four reasons for Mendel's success.
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
What is a Dihybrid Cross?
State Mendel's law of dominance.
Choose the correct answer:
The allele which masks the effect of its complement is _______
The 9 : 3 : 3 : 1 dihybrid ratio is due to ______.
Why did Mendel select pea plants for his experiment?
Give Reason:
Heritable variations are called genetic variations.
Multiple Choice Question
Who among the following is called father of genetics?
Long answer type question.
Explain with suitable example an independent assotrment.
When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be ______.
Genes which code for a pair of contrasting traits are known as ______.
To study the natural phenomenon of inheritance, Mendel selected pea plants. Which of the following properties were suitable for their studies?
(i) Plants would easily self-pollinate or cross-pollinate in nature.
(ii) Plants were easily grown in garden soil with a considerably shorter generation time.
(iii) Pea plants do not require true-breeding for hybridization experiments.
(iv) Many parts of the plant such as pod, seed, flower, cotyledons showed distinct phenotypes.
In the human blood grouping, the four basic blood types are type A, type B, type AB, and type O. They are ______
New species may be formed if
- DNA undergoes significant changes in germ cells
- chromosome number changes in the gamete
- there is no change in the genetic material
- mating does not take place
In order to obtain the F1 generation Mendel pollinated a pure-breeding tall plant with a pure breeding dwarf plant. But for getting the F2 generation, he simply self-pollinated the tall F1 plants. Why?
A green stemmed tomato plant denoted by (GG) is crossed with a tomato plant with purple stem denoted by (gg).
- What colour of the stem would you expect in their F1 progeny?
- In what ratio would you find the green and purple coloured stem in plants of F2 progeny?
- What conclusion can be drawn for the above observations?
Identify the incorrect statement with reference to the gene ‘I’ that controls ABO blood groups.
