342187
Assertion : Mendel’s seven characters are confined to only four chromosomes. Reason : Test cross is a cross between \({F_1}\) hybrid and recessive parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Yes, Mendel’s seven characters are located on four chromosomes. Characters studied by Mendel Chromosome \(location\;Seed\;form\;\;7\) \(Cotyeldon\;colour\;\;\;\;\;1\) \(Seed\;coat\;colour\;\;\;\;\;\;\;1\) \(Pod\;form\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;4\) \(Pod\;colour\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;5\) \(Flower\;position\;\;\;\;\;\;\;4\) \(Stem\;length\;\;\;\;\;\;\;\;\;\;\;\;\;4\)
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342188
Percentage of pure breeding \({F_2}\) individulas of a monohybrid cross would be
1 \(50\% \)
2 \(75\% \)
3 \(25\% \)
4 \(12.5\% \)
Explanation:
For eg. TT: 25%, tt 25% (Homozygous) Total: 50% Heterozygous are : 50%
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342189
What features can be understood from Punnett square?
1 Formation of the zygotes
2 Production of gametes by the parents
3 Production of gametes by the \({F_1}\) and \({F_2}\) plants
4 All of them
Explanation:
It is a graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross. The possible gametes are written on two sides, usually the top row and left columns. All possible combinations are represented in boxes below in the squares, which generates a square output form.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342190
Assertion : Hybrids are generally back crossed. Reason : Back cross is done to increase the traits of the parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Back cross is a cross of hybrid and one of its parents. In plant breeding, back cross is applied few times to increase the characters of that parent. As for example, a crop plant is generally crossed with a wild variety in order to get its disease resistance variety. In the whole procedure the good traits and the crop plant dilutes. Hence, the hybrid is crossed again and again with crop plant to transfer the good traits back into it.
342187
Assertion : Mendel’s seven characters are confined to only four chromosomes. Reason : Test cross is a cross between \({F_1}\) hybrid and recessive parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Yes, Mendel’s seven characters are located on four chromosomes. Characters studied by Mendel Chromosome \(location\;Seed\;form\;\;7\) \(Cotyeldon\;colour\;\;\;\;\;1\) \(Seed\;coat\;colour\;\;\;\;\;\;\;1\) \(Pod\;form\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;4\) \(Pod\;colour\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;5\) \(Flower\;position\;\;\;\;\;\;\;4\) \(Stem\;length\;\;\;\;\;\;\;\;\;\;\;\;\;4\)
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342188
Percentage of pure breeding \({F_2}\) individulas of a monohybrid cross would be
1 \(50\% \)
2 \(75\% \)
3 \(25\% \)
4 \(12.5\% \)
Explanation:
For eg. TT: 25%, tt 25% (Homozygous) Total: 50% Heterozygous are : 50%
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342189
What features can be understood from Punnett square?
1 Formation of the zygotes
2 Production of gametes by the parents
3 Production of gametes by the \({F_1}\) and \({F_2}\) plants
4 All of them
Explanation:
It is a graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross. The possible gametes are written on two sides, usually the top row and left columns. All possible combinations are represented in boxes below in the squares, which generates a square output form.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342190
Assertion : Hybrids are generally back crossed. Reason : Back cross is done to increase the traits of the parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Back cross is a cross of hybrid and one of its parents. In plant breeding, back cross is applied few times to increase the characters of that parent. As for example, a crop plant is generally crossed with a wild variety in order to get its disease resistance variety. In the whole procedure the good traits and the crop plant dilutes. Hence, the hybrid is crossed again and again with crop plant to transfer the good traits back into it.
342187
Assertion : Mendel’s seven characters are confined to only four chromosomes. Reason : Test cross is a cross between \({F_1}\) hybrid and recessive parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Yes, Mendel’s seven characters are located on four chromosomes. Characters studied by Mendel Chromosome \(location\;Seed\;form\;\;7\) \(Cotyeldon\;colour\;\;\;\;\;1\) \(Seed\;coat\;colour\;\;\;\;\;\;\;1\) \(Pod\;form\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;4\) \(Pod\;colour\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;5\) \(Flower\;position\;\;\;\;\;\;\;4\) \(Stem\;length\;\;\;\;\;\;\;\;\;\;\;\;\;4\)
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342188
Percentage of pure breeding \({F_2}\) individulas of a monohybrid cross would be
1 \(50\% \)
2 \(75\% \)
3 \(25\% \)
4 \(12.5\% \)
Explanation:
For eg. TT: 25%, tt 25% (Homozygous) Total: 50% Heterozygous are : 50%
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342189
What features can be understood from Punnett square?
1 Formation of the zygotes
2 Production of gametes by the parents
3 Production of gametes by the \({F_1}\) and \({F_2}\) plants
4 All of them
Explanation:
It is a graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross. The possible gametes are written on two sides, usually the top row and left columns. All possible combinations are represented in boxes below in the squares, which generates a square output form.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342190
Assertion : Hybrids are generally back crossed. Reason : Back cross is done to increase the traits of the parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Back cross is a cross of hybrid and one of its parents. In plant breeding, back cross is applied few times to increase the characters of that parent. As for example, a crop plant is generally crossed with a wild variety in order to get its disease resistance variety. In the whole procedure the good traits and the crop plant dilutes. Hence, the hybrid is crossed again and again with crop plant to transfer the good traits back into it.
342187
Assertion : Mendel’s seven characters are confined to only four chromosomes. Reason : Test cross is a cross between \({F_1}\) hybrid and recessive parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Yes, Mendel’s seven characters are located on four chromosomes. Characters studied by Mendel Chromosome \(location\;Seed\;form\;\;7\) \(Cotyeldon\;colour\;\;\;\;\;1\) \(Seed\;coat\;colour\;\;\;\;\;\;\;1\) \(Pod\;form\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;4\) \(Pod\;colour\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;5\) \(Flower\;position\;\;\;\;\;\;\;4\) \(Stem\;length\;\;\;\;\;\;\;\;\;\;\;\;\;4\)
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342188
Percentage of pure breeding \({F_2}\) individulas of a monohybrid cross would be
1 \(50\% \)
2 \(75\% \)
3 \(25\% \)
4 \(12.5\% \)
Explanation:
For eg. TT: 25%, tt 25% (Homozygous) Total: 50% Heterozygous are : 50%
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342189
What features can be understood from Punnett square?
1 Formation of the zygotes
2 Production of gametes by the parents
3 Production of gametes by the \({F_1}\) and \({F_2}\) plants
4 All of them
Explanation:
It is a graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross. The possible gametes are written on two sides, usually the top row and left columns. All possible combinations are represented in boxes below in the squares, which generates a square output form.
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342190
Assertion : Hybrids are generally back crossed. Reason : Back cross is done to increase the traits of the parent.
1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Back cross is a cross of hybrid and one of its parents. In plant breeding, back cross is applied few times to increase the characters of that parent. As for example, a crop plant is generally crossed with a wild variety in order to get its disease resistance variety. In the whole procedure the good traits and the crop plant dilutes. Hence, the hybrid is crossed again and again with crop plant to transfer the good traits back into it.
