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How many given characters of garden pea ...

How many given characters of garden pea express when the factor are homozygous only ?
Terminal flower, Green seed, Yellow pod, Constricted pod, Violet petals, Dwarf stem

A

four

B

Five

C

Six

D

One

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many characters of garden pea express when the factors are homozygous only, we need to analyze each character provided in the question. ### Step-by-Step Solution: 1. **Understand Dominance and Recessiveness**: - Dominant traits can be expressed in both homozygous (AA) and heterozygous (Aa) conditions. - Recessive traits can only be expressed in homozygous conditions (aa). 2. **List the Characters**: - Terminal flower - Green seed - Yellow pod - Constricted pod - Violet petals - Dwarf stem 3. **Analyze Each Character**: - **Terminal Flower**: This is a recessive trait. It will express only in homozygous condition (tt). **(Expresses)** - **Green Seed**: This is also a recessive trait. It will express only in homozygous condition (gg). **(Expresses)** - **Yellow Pod**: This is a recessive trait. It will express only in homozygous condition (yy). **(Expresses)** - **Constricted Pod**: This is a recessive trait. It will express only in homozygous condition (cc). **(Expresses)** - **Violet Petals**: This is a dominant trait. It can express in both homozygous (VV) and heterozygous (Vv) conditions. **(Does not express only in homozygous)** - **Dwarf Stem**: This is a recessive trait. It will express only in homozygous condition (dd). **(Expresses)** 4. **Count the Characters that Express in Homozygous Condition**: - Characters that express only in homozygous condition: - Terminal flower - Green seed - Yellow pod - Constricted pod - Dwarf stem - Total: 5 characters 5. **Conclusion**: - The total number of characters that express when the factors are homozygous only is **5**. ### Final Answer: **5 characters express when the factors are homozygous only.** ---
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The character which can express only in homozygous condition in case of garden pea is- (A) Constricted pod (B) Green seed colour (C) Axial flower (D) Yellow pod

If a true breeding homozygous pea plant with green pod and axial flower as dominant characters is crossed with a recessive homozygous pea plant with yellow pods and terminal flowers, then what would be the: Genotype of the two parents?

Knowledge Check

  • Read the passages and answer the questions that follow Co-dominance Mendel's early work with pea plants provided the foundational knowledge for genetics, but Mendel's simple example of two alleles, one dominant and one recessive, for a given gene is a rarity. In fact, dominance and recessiveness are not actually allelic properties. Rather, they are effects that can only be measured in relation to the effects of other alleles at the same locus. Furthermore, dominance may change according to the level of organization of the phenotype. Variations of dominance highlight the complexity of understanding genetic influences on phenotypes. Co-dominance is a type of non-Mendelian inheritance pattern that finds the traits expressed by the alleles to be equal in the phenotype. There is neither a complete dominance nor incomplete dominance of one trait over the other for that given characteristic. In camellia flowers, petal colour is controlled by codominance. When a red flower is crossed with a white flower, all of the offspring are covered in both red and white petals. In case of codominance product is .....

    A
    Produced from both the alleles
    B
    Produced from one allele
    C
    Incompletely produced from both alleles
    D
    None are functional

  • Read the passages and answer the questions that follow Co-dominance Mendel's early work with pea plants provided the foundational knowledge for genetics, but Mendel's simple example of two alleles, one dominant and one recessive, for a given gene is a rarity. In fact, dominance and recessiveness are not actually allelic properties. Rather, they are effects that can only be measured in relation to the effects of other alleles at the same locus. Furthermore, dominance may change according to the level of organization of the phenotype. Variations of dominance highlight the complexity of understanding genetic influences on phenotypes. Co-dominance is a type of non-Mendelian inheritance pattern that finds the traits expressed by the alleles to be equal in the phenotype. There is neither a complete dominance nor incomplete dominance of one trait over the other for that given characteristic. In camellia flowers, petal colour is controlled by codominance. When a red flower is crossed with a white flower, all of the offspring are covered in both red and white petals. Which of the following statement is false?

    A
    In the ABO blood type system in humans, blood type AB is an example of codominance
    B
    Both IA and IB are dominant alleles.
    C
    In codominance, blood type AB implies that both dominant alleles are present and expressed together.
    D
    Blood type AA is an example of codominance.

  • Read the passages and answer the questions that follow Co-dominance Mendel's early work with pea plants provided the foundational knowledge for genetics, but Mendel's simple example of two alleles, one dominant and one recessive, for a given gene is a rarity. In fact, dominance and recessiveness are not actually allelic properties. Rather, they are effects that can only be measured in relation to the effects of other alleles at the same locus. Furthermore, dominance may change according to the level of organization of the phenotype. Variations of dominance highlight the complexity of understanding genetic influences on phenotypes. Co-dominance is a type of non-Mendelian inheritance pattern that finds the traits expressed by the alleles to be equal in the phenotype. There is neither a complete dominance nor incomplete dominance of one trait over the other for that given characteristic. In camellia flowers, petal colour is controlled by codominance. When a red flower is crossed with a white flower, all of the offspring are covered in both red and white petals. A scientist crosses a red flower (RR) with a red-and-white (RW) flower. What are the predicted phenotypes of their offspring?

    A
    All of the offspring will have red-and white petals
    B
    50 percent of the offspring will be red, and 50 percent of the offspring will be red and white.
    C
    All of the offspring will have red petals.
    D
    75 percent of the offspring will be red, and 25 percent of the offspring will be white.

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    If a true breeding homozygous pea plant with green pod and axial flower as dominant characters is crossed with a recessive homozygous pea plant with yellow pod and terminal flowers, then what would be the: Phenotype and genotype of the F_1 offspring?

    If a true breeding homozygous pea plant with green seed and axial flower as dominant characters is crossed with a recessive homozygous pea plant with yellow seeds and terminal flowers, then what would be the: Phenotypic distribution ratio in F_2 population?

    A true breeding homozygous pea plant with green pods and axial flowers as dominant characters, crossed with a recessive homozygous pea plant with yellow pods and terminal flowers. Work out the cross upto F_2 generation giving the phenotypic ratios of F_1 and F_2 generation respectively. (b) State the Mendelian principle which can be derived from such a cross and not from monohybird cross.

    When a green full pod producing pea plant ils crossed to an yellow constricted pod producing pea plant in the progen gren fullpod and green constricted pod producing pea plants only are formed in 1:1 ratio. The genotype of tested individual is

    Read the passages and answer the questions that follow Co-dominance Mendel's early work with pea plants provided the foundational knowledge for genetics, but Mendel's simple example of two alleles, one dominant and one recessive, for a given gene is a rarity. In fact, dominance and recessiveness are not actually allelic properties. Rather, they are effects that can only be measured in relation to the effects of other alleles at the same locus. Furthermore, dominance may change according to the level of organization of the phenotype. Variations of dominance highlight the complexity of understanding genetic influences on phenotypes. Co-dominance is a type of non-Mendelian inheritance pattern that finds the traits expressed by the alleles to be equal in the phenotype. There is neither a complete dominance nor incomplete dominance of one trait over the other for that given characteristic. In camellia flowers, petal colour is controlled by codominance. When a red flower is crossed with a white flower, all of the offspring are covered in both red and white petals. Punnett square showing a test cross between a white-furred bull (WW) and a red-furred cow (RR). All their offspring are heterozygotes:

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