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Which law states that some alleles are dominant over other alleles?
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Mendel's Law of Dominance
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Mendel's Law of Independent Assortment
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Mendel's Law of Segregation
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Mendel's Law of Recession
Explanation
According to Mendel’s law of dominance, the dominant form shall be expressed over other forms. He defined the Law of Segregation and Law of Independent Assortment as well.
For diseases such as color blindness, what pair of chromosomes must contain the gene responsible for the disease?
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23rd pair
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25th pair
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24th pair
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22nd pair
Explanation
The genes present in the 23rd pair of chromosomes are the ones related to the diseases such as color blindness and hemophilia. It is found only on the X chromosome.
What are sister chromatids joined by?
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Centromeres
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Centrosomes
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Chromosomes
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Chromomeres
Explanation
Centromeres link the sister chromatids in a chromosome. The foundation for the protein complex assembly that is essential for chromosomal segregation is provided by centromeres.
What is a sudden change in the gene which is heritable from one generation to other is known?
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Mutation
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Symbiosis
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Cloning
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Variation
Explanation
Permanent changes to DNA are referred to as mutatations. Mutations are errors that affect the phenotype of an organism.
What is the process of transfer of hereditary characteristics from one generation to another known as?
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Genetics
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Variation
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Mutation
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Symbiosis
Explanation
The study of genes in organisms is known as genetics. It is the study of the passing of heredity characteristics from one generation to another.
What does the term DNA stand for?
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Deoxyribonucleic acid
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Dominant Nuclear Acid
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Daily Nursing Apple-juice
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The denominator of Numerous Alleles
Explanation
DNA stands for deoxyribonucleic acid. It is a molecule where a double helix is formed due to the coiling of polynucleotide chains.
How many pairs of chromosomes are present in a human cell?
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23
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26
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22
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21
Explanation
There are 23 pairs of chromosomes present in each human cell. Out of these, 22 pairs are the same in all human beings, while the 23rd pair is different in males and females.
Which word describes the collection of genes of an individual?
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Genotype
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Phenotype
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Lenotype
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Heterotype
Explanation
The collection of genes of an individual is known as a genotype. This term is also used to refer to two alleles.
Who is known as the father of genetics?
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Gregor Mendel
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Augustinian friar
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Norman Borlaug
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M.S Swaminathan
Explanation
Gregor Mendel, an Augustinian friar, born in 1822, is regarded as the Father of Genetics. He worked on pea plants and discovered the laws of inheritance.
Through which process are sex cells produced?
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Meiosis
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Mitosis
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Polymorphisms
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Mutation
Explanation
In meiosis, a certain type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
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