342127
What will be possible blood group in children from the parents with O and AB blood groups?
1 A, O
2 A, B
3 A, B, AB
4 B, O
Explanation:
A, B only as one parent is homozygous recessive and the other is dominant .
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342128
Identify the wrong statement.
1 Alleles \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) produce sugars.
2 Both \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) are present together and they express because of co-dominance.
3 Alleles b and c also produce sugar.
4 When \(\mathrm{I}^{\mathrm{B}}\) and \(\mathrm{b}\) or \(\mathrm{i}\) are present only \(\mathrm{I}^{\mathrm{B}}\) is expressed.
Explanation:
ABO blood group in humans is controlled by three multiple alleles, and i. There are two types of antigens present in the surface coating of red blood cells-A and B. The and alleles produce enzyme glycosyltransferase for synthesis of sugars. The sugars are attached to lipids and produce glycolipids. These glycolipids then associate with membrane of RBC to form blood group antigens. Allele i does not produce any enzyme/ antigen. Both and are codominant (i.e., able to express themselves in presence of each other) but are dominant over i.
KCET - 2015
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342129
Which of the following option (s) is/are correct for starch synthesis in pea seeds controlled by single gene which has two allelic forms B and b?
1 BB is round seed with large starch synthesis
2 bb is wrinkled seed with large starch synthesis
3 Bb is round seed with less startch synthesis
4 All of the above
Explanation:
Starch is synthesised effectively by BB homozygotes and therefore, large starch grains are produced. In contrast, bb homozygotes have lesser efficiency in starch synthesis and produce smaller starch grains. After maturation of the seeds, BB seeds are round and the bb seeds are wrinkled. Heterozygotes produce round seeds, and so B seems to be the dominant allele. But, the starch grains produced are of intermediate size in Bb seeds
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342130
ABO blood group is determined by three different alleles. How many genotypes and phenotypes are possible?
1 Genotype-6 Phenotype-4
2 Genotype-3 Phenotype-1
3 Genotype-4 Phenotype-6
4 Genotype-9 Phenotype-7
Explanation:
ABO blood group is determined by three different alleles. This gives rise to six possible genotypes and four possible blood types(phenotypes).
342127
What will be possible blood group in children from the parents with O and AB blood groups?
1 A, O
2 A, B
3 A, B, AB
4 B, O
Explanation:
A, B only as one parent is homozygous recessive and the other is dominant .
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342128
Identify the wrong statement.
1 Alleles \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) produce sugars.
2 Both \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) are present together and they express because of co-dominance.
3 Alleles b and c also produce sugar.
4 When \(\mathrm{I}^{\mathrm{B}}\) and \(\mathrm{b}\) or \(\mathrm{i}\) are present only \(\mathrm{I}^{\mathrm{B}}\) is expressed.
Explanation:
ABO blood group in humans is controlled by three multiple alleles, and i. There are two types of antigens present in the surface coating of red blood cells-A and B. The and alleles produce enzyme glycosyltransferase for synthesis of sugars. The sugars are attached to lipids and produce glycolipids. These glycolipids then associate with membrane of RBC to form blood group antigens. Allele i does not produce any enzyme/ antigen. Both and are codominant (i.e., able to express themselves in presence of each other) but are dominant over i.
KCET - 2015
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342129
Which of the following option (s) is/are correct for starch synthesis in pea seeds controlled by single gene which has two allelic forms B and b?
1 BB is round seed with large starch synthesis
2 bb is wrinkled seed with large starch synthesis
3 Bb is round seed with less startch synthesis
4 All of the above
Explanation:
Starch is synthesised effectively by BB homozygotes and therefore, large starch grains are produced. In contrast, bb homozygotes have lesser efficiency in starch synthesis and produce smaller starch grains. After maturation of the seeds, BB seeds are round and the bb seeds are wrinkled. Heterozygotes produce round seeds, and so B seems to be the dominant allele. But, the starch grains produced are of intermediate size in Bb seeds
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342130
ABO blood group is determined by three different alleles. How many genotypes and phenotypes are possible?
1 Genotype-6 Phenotype-4
2 Genotype-3 Phenotype-1
3 Genotype-4 Phenotype-6
4 Genotype-9 Phenotype-7
Explanation:
ABO blood group is determined by three different alleles. This gives rise to six possible genotypes and four possible blood types(phenotypes).
342127
What will be possible blood group in children from the parents with O and AB blood groups?
1 A, O
2 A, B
3 A, B, AB
4 B, O
Explanation:
A, B only as one parent is homozygous recessive and the other is dominant .
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342128
Identify the wrong statement.
1 Alleles \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) produce sugars.
2 Both \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) are present together and they express because of co-dominance.
3 Alleles b and c also produce sugar.
4 When \(\mathrm{I}^{\mathrm{B}}\) and \(\mathrm{b}\) or \(\mathrm{i}\) are present only \(\mathrm{I}^{\mathrm{B}}\) is expressed.
Explanation:
ABO blood group in humans is controlled by three multiple alleles, and i. There are two types of antigens present in the surface coating of red blood cells-A and B. The and alleles produce enzyme glycosyltransferase for synthesis of sugars. The sugars are attached to lipids and produce glycolipids. These glycolipids then associate with membrane of RBC to form blood group antigens. Allele i does not produce any enzyme/ antigen. Both and are codominant (i.e., able to express themselves in presence of each other) but are dominant over i.
KCET - 2015
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342129
Which of the following option (s) is/are correct for starch synthesis in pea seeds controlled by single gene which has two allelic forms B and b?
1 BB is round seed with large starch synthesis
2 bb is wrinkled seed with large starch synthesis
3 Bb is round seed with less startch synthesis
4 All of the above
Explanation:
Starch is synthesised effectively by BB homozygotes and therefore, large starch grains are produced. In contrast, bb homozygotes have lesser efficiency in starch synthesis and produce smaller starch grains. After maturation of the seeds, BB seeds are round and the bb seeds are wrinkled. Heterozygotes produce round seeds, and so B seems to be the dominant allele. But, the starch grains produced are of intermediate size in Bb seeds
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342130
ABO blood group is determined by three different alleles. How many genotypes and phenotypes are possible?
1 Genotype-6 Phenotype-4
2 Genotype-3 Phenotype-1
3 Genotype-4 Phenotype-6
4 Genotype-9 Phenotype-7
Explanation:
ABO blood group is determined by three different alleles. This gives rise to six possible genotypes and four possible blood types(phenotypes).
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BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342127
What will be possible blood group in children from the parents with O and AB blood groups?
1 A, O
2 A, B
3 A, B, AB
4 B, O
Explanation:
A, B only as one parent is homozygous recessive and the other is dominant .
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342128
Identify the wrong statement.
1 Alleles \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) produce sugars.
2 Both \(\mathrm{I}^{\mathrm{A}}\) and \(\mathrm{I}^{\mathrm{B}}\) are present together and they express because of co-dominance.
3 Alleles b and c also produce sugar.
4 When \(\mathrm{I}^{\mathrm{B}}\) and \(\mathrm{b}\) or \(\mathrm{i}\) are present only \(\mathrm{I}^{\mathrm{B}}\) is expressed.
Explanation:
ABO blood group in humans is controlled by three multiple alleles, and i. There are two types of antigens present in the surface coating of red blood cells-A and B. The and alleles produce enzyme glycosyltransferase for synthesis of sugars. The sugars are attached to lipids and produce glycolipids. These glycolipids then associate with membrane of RBC to form blood group antigens. Allele i does not produce any enzyme/ antigen. Both and are codominant (i.e., able to express themselves in presence of each other) but are dominant over i.
KCET - 2015
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342129
Which of the following option (s) is/are correct for starch synthesis in pea seeds controlled by single gene which has two allelic forms B and b?
1 BB is round seed with large starch synthesis
2 bb is wrinkled seed with large starch synthesis
3 Bb is round seed with less startch synthesis
4 All of the above
Explanation:
Starch is synthesised effectively by BB homozygotes and therefore, large starch grains are produced. In contrast, bb homozygotes have lesser efficiency in starch synthesis and produce smaller starch grains. After maturation of the seeds, BB seeds are round and the bb seeds are wrinkled. Heterozygotes produce round seeds, and so B seems to be the dominant allele. But, the starch grains produced are of intermediate size in Bb seeds
BIOXII05: PRINCIPLES OF INHERITANCE AND VARIATION
342130
ABO blood group is determined by three different alleles. How many genotypes and phenotypes are possible?
1 Genotype-6 Phenotype-4
2 Genotype-3 Phenotype-1
3 Genotype-4 Phenotype-6
4 Genotype-9 Phenotype-7
Explanation:
ABO blood group is determined by three different alleles. This gives rise to six possible genotypes and four possible blood types(phenotypes).
