Biology
Grade-9
Easy
Question
What did Gregor Mendel study?
- Mold spores
- Pea plants
- Sun flowers
- Rats
The correct answer is: Pea plants
- Through his careful breeding of garden peas, Gregor Mendel discovered the basic principles of heredity and laid the mathematical foundation of the science of genetics.
Related Questions to study
Biology
The traits of an organism are passed to its offspring on small coded strands of DNA material called__________.
- Meiosis
- Recessive traits
- Genes
- Heredity
The traits of an organism are passed to its offspring on small coded strands of DNA material called__________.
BiologyGrade-9
- Meiosis
- Recessive traits
- Genes
- Heredity
Biology
Genes always appear in pairs. Your parents donate ________ allele for every trait.
- 1
- 2
- 23
- 46
Genes always appear in pairs. Your parents donate ________ allele for every trait.
BiologyGrade-9
- 1
- 2
- 23
- 46
Biology
What type of organism was used to determine the basic patterns of heredity?
- Fruit flies
- Dogs
- Potato plants
- Pea plants
What type of organism was used to determine the basic patterns of heredity?
BiologyGrade-9
- Fruit flies
- Dogs
- Potato plants
- Pea plants
Biology
Segments of DNA are called _______________________.
- Genes
- Alleles
- Traits
- Chromosomes
Segments of DNA are called _______________________.
BiologyGrade-9
- Genes
- Alleles
- Traits
- Chromosomes
Biology
If brown hair is represented by the allele "B" and blond hair is represented by the allele "b", then what must be the genotype of someone who has blond hair?
- BB
- bb
- Bb
- Either BB or Bb
If brown hair is represented by the allele "B" and blond hair is represented by the allele "b", then what must be the genotype of someone who has blond hair?
BiologyGrade-9
- BB
- bb
- Bb
- Either BB or Bb
Biology
A segment of DNA that codes for a trait is:
- Gene
- Centromere
- Chromosome
- Chromatid
A segment of DNA that codes for a trait is:
BiologyGrade-9
- Gene
- Centromere
- Chromosome
- Chromatid
Biology
More than _______ alleles that control a trait are called multiple alleles.
- 5
- 1
- 2
- 10
More than _______ alleles that control a trait are called multiple alleles.
BiologyGrade-9
- 5
- 1
- 2
- 10
Biology
Which of the following is a genetic trait?
- Time
- Temperature
- Eye color
- Diet
Which of the following is a genetic trait?
BiologyGrade-9
- Time
- Temperature
- Eye color
- Diet
Biology
___________________________ is the field of science that studies of how traits are passed on, or inherited.
- Dominant traits
- Ratio
- Phenotype
- Genetics
___________________________ is the field of science that studies of how traits are passed on, or inherited.
BiologyGrade-9
- Dominant traits
- Ratio
- Phenotype
- Genetics
Biology
A version or variation of a gene is:
- Trait
- Gene
- Allele
- DNA
A version or variation of a gene is:
BiologyGrade-9
- Trait
- Gene
- Allele
- DNA
Biology
A unit that determines a trait:
- Gene
- Genetics
- Genome
- Jeans
A unit that determines a trait:
BiologyGrade-9
- Gene
- Genetics
- Genome
- Jeans
Biology
A characteristic that an organism can pass on to its offspring:
- Heredity
- Punnett square
- Trait
- Phenotype
A characteristic that an organism can pass on to its offspring:
BiologyGrade-9
- Heredity
- Punnett square
- Trait
- Phenotype
Biology
A chart that shows all the possible combinations of alleles from parents:
- T-square
- Gene chart
- Punnett square
- DNA organizer
A chart that shows all the possible combinations of alleles from parents:
BiologyGrade-9
- T-square
- Gene chart
- Punnett square
- DNA organizer
Biology
Threadlike structures that carry DNA is:
- Allele
- Genotype
- Chromosome
- Phenotype
Threadlike structures that carry DNA is:
BiologyGrade-9
- Allele
- Genotype
- Chromosome
- Phenotype
Biology
The carrier of genetic information is:
- DNA
- RNA
- Phenotype
- Nucleus
The carrier of genetic information is:
BiologyGrade-9
- DNA
- RNA
- Phenotype
- Nucleus
