Recessive traits.
(iv) Recessive traits are only expressed in homozygous condition.
Which trait of pea plants are expressed only in homozygous conditions?
recessive
Out of all the six traits mentioned in the question, it is only the violet petals trait that is dominant, all others are recessive. For these recessive traits to be expressed, they have to be in the homozygous condition.
Which of the following will be expressed only in homozygous condition?
Recessive trait
Hence, the correct answer is Recessive trait can be expressed in homozygous conditions only.
Which of the following traits can be expressed in both homozygous and heterozygous condition?
Dominant traits
Explanation: Dominant traits are expressed in both homozygous and heterozygous conditions.
Which one of the following traits is expressed only in the presence of identical alleles?
4) Green seed is expressed only in the presence of identical alleles.
How many of these traits can express only under homozygous condition?
(iv) Recessive traits are only expressed in homozygous condition. A cross between a homozygous pea plant with a dominant character and a homozygous pea plant with a recessive character showed `F_1` hybrids expressing the dominant character only.
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Which one of the given traits of pea plant can be expressed in both homozygous as well as in heterozygous conditions?
(i) Dominant trait are expressed in both homozygous and heterozygous conditions.
Which of the following is an example of homozygous?
Homozygous examples
You can have brown eyes whether you’re homozygous (two alleles for brown eyes) or heterozygous (one for brown and one for blue). This is unlike the allele for blue eyes, which is recessive. You need two identical blue eye alleles in order to have blue eyes.
Which of the following is an example of homozygous genotype?
A homozygous brown-eyed person would have the BB gene, while a homozygous blue-eyed person would have the bb gene. An individual has the dominant SS gene, a homozygous gene that results in farsightedness. However, his friend has the homozygous gene ss for the recessive trait, which is normal sight.
Why are recessive characters expressed in homozygous conditions?
In a homozygous condition, recessive allele can express itself as there is no dominant allele to mask its effect. Therefore, this is the correct option.
Which factor express itself in homozygous and even in heterozygous condition?
The allele which gets expressed in both homozygous and heterozygous condition is known as the allele. The allele which gets expressed in both homozygous and heterozygous condition is known as the allele.
What is homozygous condition?
Homozygous describes the genetic condition or the genetic state where an individual has inherited the same DNA sequence for a particular gene from both their biological mother and their biological father. It’s often used in the context of disease.
What is the different between homozygous and heterozygous?
Homozygous and heterozygous are terms that are used to describe allele pairs. Individuals carrying two identical alleles (RR or rr) are known as homozygous. While individual organisms bearing different alleles (Rr) are known as heterozygous.
What is the homozygous dominant genotype?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
Which is true about homozygous organism?
homozygote, an organism with identical pairs of genes (or alleles) for a specific trait. If both of the two gametes (sex cells) that fuse during fertilization carry the same form of the gene for a specific trait, the organism is said to be homozygous for that trait.
Which of the following traits in pea plant is recessive?
Explanation: Mendel based his experiments on pea plants and studied seven pairs of contrasting traits. Yellow seed colour is the dominant trait and green seed colour is the recessive trait.
Which of the following is an example of a homozygous dominant allele?
A homozygous dominant genotype is one in which both alleles are dominant. For example, in pea plants, height is governed by a single gene with two alleles, in which the tall allele (T) is dominant and the short allele (t) is recessive.
Why did Mendel choose garden pea for his experiment Class 10?
Mendel choose pea plants for his experiments because of the following reasons: (i) The flowers of this plant are bisexual. (ii) They are self-pollinating, and thus, self and cross-pollination can easily be performed.
When a plant homozygous for tall is crossed with a plant homozygous for dwarf what will be the appearance of the offspring of a cross of f1 with its dwarf parent?
Out of the offspring produced, 50% will be tall and 50% will be dwarf.
Which of the following trait of garden pea is not present on 4th chromosome?
Answer : b) Plant height, flower position, pod shape.
The characters of garden pea which is present on 4th chromosome are : Plant height, flower position and pod shape.
Which of the following is an example of homozygous recessive genotype?
An example of a homozygous recessive genotype would be tt, where the lower case t’s represent the recessive trait. Homozygous means the same and genotype means the gene type.
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