science
Grade-10
Easy
Question
Which of the following would increase the number of different alleles in a population?
- Crossing over
- Gene mutation
- Random fusion of gametes
- Independent assortment of chromosomes
Hint:
The condition in which the gene sequence is altered due to cell division or environmental conditions.
The correct answer is: Gene mutation
- Gene is the unit of heredity with two alleles
- The two alleles can be same (homozygous) or different (heterozygous)
- A gene is a specific sequence coding for a trait
- Mutation is change in the sequence of the gene which can be caused due to error in cell division or environmental condition
- Crossing over is a stage that occurs during cell division resulting in exchange of genetic material
- Random fusion of gametes does not have the probability of increasing the frequency of alleles
- Independent assortment describe separation of genes during formation of gametes
Related Questions to study
science
Variation in a trait may be due to the change in genetic material. What do you call this type of change?
- DNA is the genetic material for all organisms
- DNA is made of sequence of nucleic acids
- Gene is the unit of heredity and codes for particular trait
- Change in sequence of nucleic acid is called mutation
- Not all mutations are harmful
Variation in a trait may be due to the change in genetic material. What do you call this type of change?
scienceGrade-10
- DNA is the genetic material for all organisms
- DNA is made of sequence of nucleic acids
- Gene is the unit of heredity and codes for particular trait
- Change in sequence of nucleic acid is called mutation
- Not all mutations are harmful
science
The following information is about two individuals, X and Y.
*Individual X: presence of a dimple
*Individual Y: no dimple
Which of the following factors causes the difference in the trait between the two individuals?
- Traits under discontinuous variation have limited range
- Traits under continuous variation have unlimited range
- Discontinuous variation is due to the influence of genes alone
- Continuous variation is due to the combined effects of genes and environment
The following information is about two individuals, X and Y.
*Individual X: presence of a dimple
*Individual Y: no dimple
Which of the following factors causes the difference in the trait between the two individuals?
scienceGrade-10
- Traits under discontinuous variation have limited range
- Traits under continuous variation have unlimited range
- Discontinuous variation is due to the influence of genes alone
- Continuous variation is due to the combined effects of genes and environment
science
Which of the following statements is true?
- Variation is the difference in genetic makeup of two individuals of the same population
- Variation can be continuous or discontinuous
- Continuous variation is influenced by genetic and environmental factors
- Discontinuous variation is influenced by genetic factors
- Inheritance of genes from parents can be studied using pedigree chart
Which of the following statements is true?
scienceGrade-10
- Variation is the difference in genetic makeup of two individuals of the same population
- Variation can be continuous or discontinuous
- Continuous variation is influenced by genetic and environmental factors
- Discontinuous variation is influenced by genetic factors
- Inheritance of genes from parents can be studied using pedigree chart
science
You get __% of your DNA from each parent.
- Gametes are haploid
- Zygote is diploid
- 50% DNA is from each parent
You get __% of your DNA from each parent.
scienceGrade-10
- Gametes are haploid
- Zygote is diploid
- 50% DNA is from each parent
science
Emily has brown hair.
Which Statement most likely explains why Emily has brown hair?
- Gene is the unit of heredity
- Expression of gene is observed as traits like hair color, blood group, etc
Emily has brown hair.
Which Statement most likely explains why Emily has brown hair?
scienceGrade-10
- Gene is the unit of heredity
- Expression of gene is observed as traits like hair color, blood group, etc
science
Which of the following is an example of Inherited variation?
- Traits under discontinuous variation have limited range
- Traits under continuous variation have unlimited range
- Discontinuous variation is due to the influence of genes alone
- Continuous variation is due to the combined effects of genes and environment
Which of the following is an example of Inherited variation?
scienceGrade-10
- Traits under discontinuous variation have limited range
- Traits under continuous variation have unlimited range
- Discontinuous variation is due to the influence of genes alone
- Continuous variation is due to the combined effects of genes and environment
science
Differences in DNA between individuals or populations
- Gene is a segment of DNA that codes for particular trait
- Gene is the unit of heredity
- Variation refers to difference existing between individuals of same population
- Variation can be due to effect of genes or environment or both
Differences in DNA between individuals or populations
scienceGrade-10
- Gene is a segment of DNA that codes for particular trait
- Gene is the unit of heredity
- Variation refers to difference existing between individuals of same population
- Variation can be due to effect of genes or environment or both
science
Student eye color could be considered what type of data?
- Variation is the difference between individuals of the same population
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell-shaped graph and bar graph, respectively
Student eye color could be considered what type of data?
scienceGrade-10
- Variation is the difference between individuals of the same population
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell-shaped graph and bar graph, respectively
science
Which type of data would student height be categorized as?
- Variation is the difference in genetic make up of individuals among same species
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell- shaped graph and bar graph, respectively
Which type of data would student height be categorized as?
scienceGrade-10
- Variation is the difference in genetic make up of individuals among same species
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell- shaped graph and bar graph, respectively
science
Which one of the following is an environmental variation?
- Variation is the reason for the difference that exists between individuals of same population
- Variation can be due to genes or environmental conditions or a combination of both
Which one of the following is an environmental variation?
scienceGrade-10
- Variation is the reason for the difference that exists between individuals of same population
- Variation can be due to genes or environmental conditions or a combination of both
science
This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis.
- Law of independent assortment was described by Gregor Mendel
- Segregation of individual traits occur during meiosis
- Independent assortment was described following dihybrid cross
This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis.
scienceGrade-10
- Law of independent assortment was described by Gregor Mendel
- Segregation of individual traits occur during meiosis
- Independent assortment was described following dihybrid cross
science
What type of graph do we use for discontinuous variation?
- Variation is the difference in genetic make up of individuals among same species
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell- shaped graph and bar graph, respectively
What type of graph do we use for discontinuous variation?
scienceGrade-10
- Variation is the difference in genetic make up of individuals among same species
- Variation can be continuous or discontinuous
- Continuous variations do not have limited range. Height, weight are classical examples
- Discontinuous variations have limited range. Eye color, blood groups are classical examples
- Continuous and discontinuous variations are expressed in bell- shaped graph and bar graph, respectively
science
Which of these is an example of inherited variation only?
- Eye color is due to the expression of 2 genes: ORC2 and HERC2
- Increased and decreased expression of the genes produce brown eyed and blue eyed offspring, respectively
Which of these is an example of inherited variation only?
scienceGrade-10
- Eye color is due to the expression of 2 genes: ORC2 and HERC2
- Increased and decreased expression of the genes produce brown eyed and blue eyed offspring, respectively
