184749
A man of blood group-A marries a woman of blood group-AB, which type of progeny would indicate that man is heterozygous?
1 0
2 \(\mathbf{B}\)
3 \(A\)
4 \(\mathbf{A B}\) JPMER-2010
Explanation:
: If the father's blood type is heterozygous \(A\) \(\left(I^A 1\right)\) and mother's blood group is \(\mathrm{AB}\left(I^{A^A} I^E\right)\), the blood types of the children will be
Principle of Inheritance and Variation
184750
In man, four phenotypes of blood groups are due to the presence of antigen-A and antigen-B on the RBC. The chromosome that has the gene to control these antigens is
1 X-chromosome
2 21 st chromosome
3 9th chromosome
4 7 th chromosome
Explanation:
: A set of three multiple alleles on the chromosome 9 is responsible for the four blood types. The gene controlling blood types has been labelled as I (Stands to Isohaemagg lutimin) or \(\mathbf{L}\) (after Landsteiner).
JCECE-2010
Principle of Inheritance and Variation
184755
If both parents are carries for thalessemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
1 \(100 \%\)
2 No chance
3 \(50 \%\)
4 \(25 \%\)
Explanation:
: Thalessemia is an autosomal recessive disease, the carrier of the disease is heterozygous for the defective gene. If the genotype TT is wormal. It is camier and it is Thalassemia them both the parents are carriers, they will have genotype it.
NEET-2013
Principle of Inheritance and Variation
184756
If a diploid cell is treated with colchicine then it becomes: -
1 Triploid
2 Tetraploid
3 Diploid
4 Monoploid
Explanation:
: Colchicine commonly used to develop polyploid plants and functions as a mitotic poison by prochcing many mutageric effects on plants. Mainly wed to develope polyploidy of plant cells.
184749
A man of blood group-A marries a woman of blood group-AB, which type of progeny would indicate that man is heterozygous?
1 0
2 \(\mathbf{B}\)
3 \(A\)
4 \(\mathbf{A B}\) JPMER-2010
Explanation:
: If the father's blood type is heterozygous \(A\) \(\left(I^A 1\right)\) and mother's blood group is \(\mathrm{AB}\left(I^{A^A} I^E\right)\), the blood types of the children will be
Principle of Inheritance and Variation
184750
In man, four phenotypes of blood groups are due to the presence of antigen-A and antigen-B on the RBC. The chromosome that has the gene to control these antigens is
1 X-chromosome
2 21 st chromosome
3 9th chromosome
4 7 th chromosome
Explanation:
: A set of three multiple alleles on the chromosome 9 is responsible for the four blood types. The gene controlling blood types has been labelled as I (Stands to Isohaemagg lutimin) or \(\mathbf{L}\) (after Landsteiner).
JCECE-2010
Principle of Inheritance and Variation
184755
If both parents are carries for thalessemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
1 \(100 \%\)
2 No chance
3 \(50 \%\)
4 \(25 \%\)
Explanation:
: Thalessemia is an autosomal recessive disease, the carrier of the disease is heterozygous for the defective gene. If the genotype TT is wormal. It is camier and it is Thalassemia them both the parents are carriers, they will have genotype it.
NEET-2013
Principle of Inheritance and Variation
184756
If a diploid cell is treated with colchicine then it becomes: -
1 Triploid
2 Tetraploid
3 Diploid
4 Monoploid
Explanation:
: Colchicine commonly used to develop polyploid plants and functions as a mitotic poison by prochcing many mutageric effects on plants. Mainly wed to develope polyploidy of plant cells.
184749
A man of blood group-A marries a woman of blood group-AB, which type of progeny would indicate that man is heterozygous?
1 0
2 \(\mathbf{B}\)
3 \(A\)
4 \(\mathbf{A B}\) JPMER-2010
Explanation:
: If the father's blood type is heterozygous \(A\) \(\left(I^A 1\right)\) and mother's blood group is \(\mathrm{AB}\left(I^{A^A} I^E\right)\), the blood types of the children will be
Principle of Inheritance and Variation
184750
In man, four phenotypes of blood groups are due to the presence of antigen-A and antigen-B on the RBC. The chromosome that has the gene to control these antigens is
1 X-chromosome
2 21 st chromosome
3 9th chromosome
4 7 th chromosome
Explanation:
: A set of three multiple alleles on the chromosome 9 is responsible for the four blood types. The gene controlling blood types has been labelled as I (Stands to Isohaemagg lutimin) or \(\mathbf{L}\) (after Landsteiner).
JCECE-2010
Principle of Inheritance and Variation
184755
If both parents are carries for thalessemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
1 \(100 \%\)
2 No chance
3 \(50 \%\)
4 \(25 \%\)
Explanation:
: Thalessemia is an autosomal recessive disease, the carrier of the disease is heterozygous for the defective gene. If the genotype TT is wormal. It is camier and it is Thalassemia them both the parents are carriers, they will have genotype it.
NEET-2013
Principle of Inheritance and Variation
184756
If a diploid cell is treated with colchicine then it becomes: -
1 Triploid
2 Tetraploid
3 Diploid
4 Monoploid
Explanation:
: Colchicine commonly used to develop polyploid plants and functions as a mitotic poison by prochcing many mutageric effects on plants. Mainly wed to develope polyploidy of plant cells.
184749
A man of blood group-A marries a woman of blood group-AB, which type of progeny would indicate that man is heterozygous?
1 0
2 \(\mathbf{B}\)
3 \(A\)
4 \(\mathbf{A B}\) JPMER-2010
Explanation:
: If the father's blood type is heterozygous \(A\) \(\left(I^A 1\right)\) and mother's blood group is \(\mathrm{AB}\left(I^{A^A} I^E\right)\), the blood types of the children will be
Principle of Inheritance and Variation
184750
In man, four phenotypes of blood groups are due to the presence of antigen-A and antigen-B on the RBC. The chromosome that has the gene to control these antigens is
1 X-chromosome
2 21 st chromosome
3 9th chromosome
4 7 th chromosome
Explanation:
: A set of three multiple alleles on the chromosome 9 is responsible for the four blood types. The gene controlling blood types has been labelled as I (Stands to Isohaemagg lutimin) or \(\mathbf{L}\) (after Landsteiner).
JCECE-2010
Principle of Inheritance and Variation
184755
If both parents are carries for thalessemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
1 \(100 \%\)
2 No chance
3 \(50 \%\)
4 \(25 \%\)
Explanation:
: Thalessemia is an autosomal recessive disease, the carrier of the disease is heterozygous for the defective gene. If the genotype TT is wormal. It is camier and it is Thalassemia them both the parents are carriers, they will have genotype it.
NEET-2013
Principle of Inheritance and Variation
184756
If a diploid cell is treated with colchicine then it becomes: -
1 Triploid
2 Tetraploid
3 Diploid
4 Monoploid
Explanation:
: Colchicine commonly used to develop polyploid plants and functions as a mitotic poison by prochcing many mutageric effects on plants. Mainly wed to develope polyploidy of plant cells.
