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2021-06-17

What is the genotype of the purple and white flower in the P generation?

What is the genotype of the purple and white flower in the P generation?

The F1 plants all have one purple allele (P) and one white allele (p). The genotype is the alleles for each gene in the plant. Here the genotype is Pp.

What is the genotype of a purple flowered pea plant?

A pea plant with purple flowers could have a genotype of either PP or Pp. A pea plant with white flowers could only have a genotype of pp. As long as at least one dominant allele is g present, the plant will always have a phenotype of purple flowers.

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What happens when a true breeding purple flower pea plant is crossed with a true breeding white flower pea plant?

You cross a “true-breeding” purple flowered, tall pea plant (PPTT) with a “true-breeding” white flowered, dwarf pea plant (pptt) and you get 100% purple, tall pea plants in your F1 generation. Both parent plants are “true breeding” and all of the F1 offspring have purple flowers and round seeds.

Can two plants with purple flowers produce offspring with white flowers quizlet?

Can two plants with purple flowers produce offspring with white flowers? Yes, if both parents are heterozygous for the trait.

How many generations of plants did Mendel study traits in during his experiments?

three generations

What is Gregor Mendel’s experiment?

Taking seed color as an example, Mendel showed that when a true-breeding yellow pea and a true-breeding green pea were cross-bred their offspring always produced yellow seeds….Gregor Mendel.

The Right Reverend Gregor Mendel
Known for Creating the science of genetics
Scientific career
Fields Genetics
Institutions St Thomas’s Abbey

How many true breeding pea plant varieties did?

14 varieties

Which one of the following is a recessive trait in garden pea?

The axial flower position was recessive to the terminal position; green seed colour was recessive to yellow colour; yellow pod colour was recessive to green and wrinkled seed shape was recessive to round shape. The correct answer is B.

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What is recessive trait?

A recessive trait is the weak, unexpressed trait of a dichotomous pair of alleles (dominant-recessive) that has no effect in the phenotype of heterozygous individuals.

Are short stems dominant or recessive?

an organism that has two different alleles for a trait. for example, the F1 plant had one allele for tall stems and one allele for short stem. all the F1 plants were tall because the dominant tall allele masks the recessive allele for short stems.

Is tall stature dominant or recessive?

For example, the gene for having an extra finger is actually dominant, while the gene for having a tall stature is a recessive trait.

Why is a pea plant that is a hybrid for stem height tall?

Hybrid pea plant is stem height tall because it has one dominant and one recessive allele. In situation like this, dominant allele covers up recessive allele for short stems.

What does it mean for an allele to be dominant or recessive?

Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.

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How do you know if a pedigree is recessive or dominant?

If both parents do not have the trait and the child does, it is recessive. If one parent has the trait and the child does or does not, it is dominant.

What is the genotype of the purple and white flower in the P generation?

The F1 plants all have one purple allele (P) and one white allele (p). The genotype is the alleles for each gene in the plant. Here the genotype is Pp.

When a PP genotype plant is bred with a PP genotype plant what percentage of the offspring is likely to have white flowers?

50%

What offspring are possible from a cross between a GG plant and a GG plant?

The offspring of the cross between the GG (homozygous dominant) and gg (homozygous recessive) plants are all heterozygous for the pod color gene. A homozygous individual is known as a homozygote, and a heterozygous individual is known as a heterozygote.

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What is the probability that two parents who are heterozygous for the recessive trait of albinism?

For two heterozygote parents (Aa), 1/4 of all offspring would be expected to show the recessive trait of albinism.

What is the difference 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.

Are humans homozygous or heterozygous?

Since humans possess two copies of each chromosome, they also have two copies of each gene and locus on those chromosomes. Each of these trait-encoding genes (or loci) is called an allele. If the alleles are different, the person is heterozygous for that trait.

What is the genotype if a person is heterozygous A?

An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb.

What is the phenotype of a heterozygous individual?

A heterozygous individual is a diploid organism with two alleles, each of a different type. In alleles that show complete dominance, the heterozygous phenotype will be the same as the dominant phenotype. …