A colour blind man marry with a daughter of colour blind father, the generation will be
- there will be no daughter colour blind
- all sons will be colour blind
- all daughter will be colour blind
- half sons will be colour blind
The Correct Option is D
Solution and Explanation
Top Questions on Dihybrid Cross
- In dihybrid cross, when F1 plants (RrYy) are self hybridised, the ratio of segregation of yellow and green in F2 is :
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- A common test to find the genotype of a hybrid is
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- In a given plant, red colour $(R)$ of fruits is dominant over white fruit $(r)$ : and tallness $(T)$ is dominant over dwarfness (t). If a plant with genotype $RRTt$ is crossed with a plant of genotype $rrtt$, what will be the percentage of tall plants with red fruits in the next generation?
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- If a plant having yellow or round seeds was crossed with another plant having green and wrinkled seeds then $F_1$ progeny are in the ratio:
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Questions Asked in AIIMS exam
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.
Reason (R) : Liberation of oxygen is due to photolysis of water.
In the light of the above statements, choose the correct answer from the options given below
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- Photosynthesis in higher plants
- Match the following column I with column II.
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- cloning
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- evolution
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
In the light of the above statements, choose the correct answer from the options given below- AIIMS - 2019
- Gravitation
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In eukaryotes, transcription occurs in nucleus.
Reason (R) : In bacteria, transcription and translation occurs in cytoplasm.
In the light of the above statements, choose the correct answer from the options given below
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- Transcription
Concepts Used:
Dihybrid Cross
A genetic cross between two individuals who have homozygous or heterozygous genotypes for two features or traits is called a dihybrid cross. The traits of these individuals are mainly identified by genes. The parents in a dihybrid cross experiment carry different alleles for each trait where one would be a homozygous dominant allele and the other would be a homozygous recessive allele.
For example,
A classic example of a dihybrid cross is Mendel’s experiment with peas. The experiment was done to highlight whether there is any relationship in existence between various pairs of alleles.
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