Biology
Grade-9
Easy

Question

Which of the following is homozygous recessive?

  1. Tt
  2. tt
  3. TT
  4. T

The correct answer is: tt


    • Homozygous, as related to genetics, refers to having inherited the same alleles of a genomic marker from each biological parent.

    Related Questions to study

    Grade-9
    Biology

    Which of the following is homozygous dominant?

    1. Jj
    2. Rr
    3. MM
    4. ee

    Which of the following is homozygous dominant?

    BiologyGrade-9
    1. Jj
    2. Rr
    3. MM
    4. ee
    Grade-9
    Biology

    What did Mendel notice?

    1. Most pea flowers were tall, and some were purple.
    2. Most of the pea flowers were white, but a few were purple.
    3. Most of the pea flowers were purple, but a few were white.
    4. Most pea flowers were short, and some were white.

    What did Mendel notice?

    BiologyGrade-9
    1. Most pea flowers were tall, and some were purple.
    2. Most of the pea flowers were white, but a few were purple.
    3. Most of the pea flowers were purple, but a few were white.
    4. Most pea flowers were short, and some were white.
    Grade-9
    Biology

    Why pea plants were perfect to study on heredity?

    1. Pea plants are complex
    2. They were easy to study
    3. One gene controlled one trait
    4. One gene was controlled by multiple traits

    Why pea plants were perfect to study on heredity?

    BiologyGrade-9
    1. Pea plants are complex
    2. They were easy to study
    3. One gene controlled one trait
    4. One gene was controlled by multiple traits
    parallel
    Grade-9
    Biology

    What specifically about Pea Plants did Mendel study?

    1. Color of pea flower
    2. Colors of individual peas
    3. Texture of peas
    4. All of these

    What specifically about Pea Plants did Mendel study?

    BiologyGrade-9
    1. Color of pea flower
    2. Colors of individual peas
    3. Texture of peas
    4. All of these
    Grade-9
    Biology

    What was the theory of genetics before Mendel did his experiments?

    1. All traits were random
    2. All traits skipped a generation
    3. All traits were decided by God
    4. All traits were a mixing of the parent’s traits

    What was the theory of genetics before Mendel did his experiments?

    BiologyGrade-9
    1. All traits were random
    2. All traits skipped a generation
    3. All traits were decided by God
    4. All traits were a mixing of the parent’s traits
    Grade-9
    Biology

    What did Gregor Mendel study?

    1. Mold spores
    2. Pea plants
    3. Sun flowers
    4. Rats

    What did Gregor Mendel study?

    BiologyGrade-9
    1. Mold spores
    2. Pea plants
    3. Sun flowers
    4. Rats
    parallel
    Grade-9
    Biology

    The traits of an organism are passed to its offspring on small coded strands of DNA material called__________.

    1. Meiosis
    2. Recessive traits
    3. Genes
    4. Heredity 

    The traits of an organism are passed to its offspring on small coded strands of DNA material called__________.

    BiologyGrade-9
    1. Meiosis
    2. Recessive traits
    3. Genes
    4. Heredity 
    Grade-9
    Biology

    Genes always appear in pairs. Your parents donate ________ allele for every trait.

    1. 1
    2. 2
    3. 23
    4. 46

    Genes always appear in pairs. Your parents donate ________ allele for every trait.

    BiologyGrade-9
    1. 1
    2. 2
    3. 23
    4. 46
    Grade-9
    Biology

    What type of organism was used to determine the basic patterns of heredity?

    1. Fruit flies
    2. Dogs
    3. Potato plants
    4. Pea plants

    What type of organism was used to determine the basic patterns of heredity?

    BiologyGrade-9
    1. Fruit flies
    2. Dogs
    3. Potato plants
    4. Pea plants
    parallel
    Grade-9
    Biology

    Segments of DNA are called _______________________.

    1. Genes
    2. Alleles
    3. Traits
    4. Chromosomes

    Segments of DNA are called _______________________.

    BiologyGrade-9
    1. Genes
    2. Alleles
    3. Traits
    4. Chromosomes
    Grade-9
    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?

    1. BB
    2. bb
    3. Bb
    4. 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
    1. BB
    2. bb
    3. Bb
    4. Either BB or Bb
    Grade-9
    Biology

    A segment of DNA that codes for a trait is:

    1. Gene
    2. Centromere
    3. Chromosome
    4. Chromatid

    A segment of DNA that codes for a trait is:

    BiologyGrade-9
    1. Gene
    2. Centromere
    3. Chromosome
    4. Chromatid
    parallel
    Grade-9
    Biology

    More than _______ alleles that control a trait are called multiple alleles.

    1. 5
    2. 1
    3. 2
    4. 10

    More than _______ alleles that control a trait are called multiple alleles.

    BiologyGrade-9
    1. 5
    2. 1
    3. 2
    4. 10
    Grade-9
    Biology

    Which of the following is a genetic trait?

    1. Time
    2. Temperature
    3. Eye color
    4. Diet

    Which of the following is a genetic trait?

    BiologyGrade-9
    1. Time
    2. Temperature
    3. Eye color
    4. Diet
    Grade-9
    Biology

    ___________________________ is the field of science that studies of how traits are passed on, or inherited.

    1. Dominant traits
    2. Ratio
    3. Phenotype
    4. Genetics

    ___________________________ is the field of science that studies of how traits are passed on, or inherited.

    BiologyGrade-9
    1. Dominant traits
    2. Ratio
    3. Phenotype
    4. Genetics
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.