Question
An allele is considered as:
A homozygous genotype
A heterozygous genotype
Several possible forms of a gene
Another word for a gene
A homozygous genotype
A heterozygous genotype
Several possible forms of a gene
Another word for a gene
Hint:
Variants of a particular gene are observed in nature.
The correct answer is: Several possible forms of a gene
- An allele refers to DNA sequences present in a particular locus
- The allele is the different versions or variants that are possible for a specific gene
- Eye color is a gene while the variants found in eye color (like blue eyes, brown eyes) are due to alleles
- For a particular gene two alleles are present
- The allele is expressed as the phenotype
- Usually the dominant allele will be expressed
- Alleles are sequence of nucleic acid that determine the phenotype of an organism
Related Questions to study
In sexual reproduction ______ gametes fuse to form _________ zygote.
Diploid, haploid
Diploid, haploid
Haploid, diploid
Haploid, haploid
In sexual reproduction ______ gametes fuse to form _________ zygote.
Diploid, haploid
Diploid, haploid
Haploid, diploid
Haploid, haploid
Genotype is referred to as the_________________
Appearance of an organism.
Genetic makeup of an organism.
Behavior of an organism.
Relative health of an organism.
Genotype is referred to as the_________________
Appearance of an organism.
Genetic makeup of an organism.
Behavior of an organism.
Relative health of an organism.
If a cross between homozygous tall (TT) and homozygous dwarf pea plant (tt) is carried out then, the offspring of the F1 generation will be:
All dominant
All recessive
Half dominant, half recessive
Three dominant, one recessive
If a cross between homozygous tall (TT) and homozygous dwarf pea plant (tt) is carried out then, the offspring of the F1 generation will be:
All dominant
All recessive
Half dominant, half recessive
Three dominant, one recessive
Which branch of biology focuses on the study of inheritance?
Genetics
Immunology
Evolution
Ecology
Which branch of biology focuses on the study of inheritance?
Genetics
Immunology
Evolution
Ecology
Phenotype means the ______________________ of an individual.
Genetic makeup
Physical appearance
Recessive alleles.
None of the above
Phenotype means the ______________________ of an individual.
Genetic makeup
Physical appearance
Recessive alleles.
None of the above
Which among the following is a recessive trait in pea plants?
Violet flowers
Axial flowers
Inflated pods
None of the above
Which among the following is a recessive trait in pea plants?
Violet flowers
Axial flowers
Inflated pods
None of the above
Mendel believed that characteristics of pea plants are determined by the:
Inheritance of factors from both parents.
Inheritance of factors from a single parent.
Relative health of the parent plants during pollination.
None of the above.
Mendel believed that characteristics of pea plants are determined by the:
Inheritance of factors from both parents.
Inheritance of factors from a single parent.
Relative health of the parent plants during pollination.
None of the above.
Mendel used __________ type of pea lines.
False-breeding
True-breeding
Not breeding
- Indefinitely breeding
Mendel used __________ type of pea lines.
False-breeding
True-breeding
Not breeding
- Indefinitely breeding
The idea that different alleles pairs are passed to offspring independently of each other is Mendel's law of:
- Dominance
- Segregation
- Independent assortment
- Unit inheritance
The idea that different alleles pairs are passed to offspring independently of each other is Mendel's law of:
- Dominance
- Segregation
- Independent assortment
- Unit inheritance
The genotypic ratio of monohybrid cross is?
1 : 2 :1
3 : 1
9 : 3 : 3 : 1
1 : 3 : 1
1 : 4: 1
The genotypic ratio of monohybrid cross is?
1 : 2 :1
3 : 1
9 : 3 : 3 : 1
1 : 3 : 1
1 : 4: 1
Continuous self-pollination in a species may develop?
Weak off springs
Strong off springs
New variety
Seedless fruit
Removing anthers of one plant
Continuous self-pollination in a species may develop?
Weak off springs
Strong off springs
New variety
Seedless fruit
Removing anthers of one plant
Which method is used to produce a true-breeding line?
Self-pollination
Cross-pollination
Artificial pollination
Allogamy
Which method is used to produce a true-breeding line?
Self-pollination
Cross-pollination
Artificial pollination
Allogamy
The process of the transfer of characters from parents to offspring is referred to as ______
Inheritance
Heritage
Genetics
Variation
The process of the transfer of characters from parents to offspring is referred to as ______
Inheritance
Heritage
Genetics
Variation
Which is not a pair of contrasting traits studied by Mendel?
Green and yellow pods
Full and constricted pods
Axial and terminal flowers
Pink and white flowers
Which is not a pair of contrasting traits studied by Mendel?
Green and yellow pods
Full and constricted pods
Axial and terminal flowers
Pink and white flowers
Mendel’s idea that the pair of alleles of each parent separate and only one allele from each parent is passed to an offspring is explained by:
Law of dominance
Law of segregation
Law of independent assortment
Hybridization
Mendel’s idea that the pair of alleles of each parent separate and only one allele from each parent is passed to an offspring is explained by:
Law of dominance
Law of segregation
Law of independent assortment
Hybridization
