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In pea plants, the allele for tall height, T, is dominant over the allele for short height, t. A pea plant has two different alleles for height. Which statement about the pea plant is correct?(1 point).

Responses

The phenotype for height is short, and the genotype is Tt.
The phenotype for height is short, and the genotype is T t .

The phenotype for height is short, and the genotype is tt.
The phenotype for height is short, and the genotype is tt .

The phenotype for height is tall, and the genotype is TT.
The phenotype for height is tall, and the genotype is TT .

The phenotype for height is tall, and the genotype is Tt.
The phenotype for height is tall, and the genotype is Tt.
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5 answers

In pea plants, the allele for tall height (T) is dominant over the allele for short height (t). If a pea plant has two different alleles for height, it must have the genotype Tt. Since T is dominant, the phenotype (observable characteristic) will be tall.

Therefore, the correct statement about the pea plant is:

The phenotype for height is tall, and the genotype is Tt.

How are the terms homozygous and heterozygous different?(1 point)
Responses

Homozygous describes having dominant alleles for a trait, and heterozygous describes having recessive alleles for a trait.
Homozygous describes having dominant alleles for a trait, and heterozygous describes having recessive alleles for a trait. - no response given

Homozygous describes having recessive alleles for a trait, and heterozygous describes having dominant alleles for a trait.
Homozygous describes having recessive alleles for a trait, and heterozygous describes having dominant alleles for a trait. - incorrect

Heterozygous describes having two of the same allele for a trait, and homozygous describes having two different alleles for a trait.
Heterozygous describes having two of the same allele for a trait, and homozygous describes having two different alleles for a trait. - no response given

Homozygous describes having two of the same allele for a trait, and heterozygous describes having two different alleles for a trait.
Homozygous describes having two of the same allele for a trait, and heterozygous describes having two different alleles for a trait. - no response given
Incorrect

While homozygous and heterozygous genotypes have differing allele structures, these definitions do not reflect the proper types of alleles associated with homozygous and heterozygous genotypes.
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Homozygous and heterozygous are terms used to describe the genetic makeup (genotype) related to a specific trait:

  • Homozygous means having two identical alleles for a trait (for example, TT or tt).
  • Heterozygous means having two different alleles for a trait (for example, Tt).

The correct response that accurately describes the difference between the terms is:

Homozygous describes having two of the same allele for a trait, and heterozygous describes having two different alleles for a trait.

Please make sure to select this response for clarification.

How are the terms purebred and hybrid different?(1 point)
Responses

Purebred is a term used for an organism with recessive alleles, and hybrid is a term used for an organism with dominant alleles.
Purebred is a term used for an organism with recessive alleles, and hybrid is a term used for an organism with dominant alleles.

Purebred is a term used for an organism with dominant alleles, and hybrid is a term used for an organism with recessive alleles.
Purebred is a term used for an organism with dominant alleles, and hybrid is a term used for an organism with recessive alleles.

Purebred is a term used for a heterozygous organism, and hybrid is a term used for a homozygous organism.
Purebred is a term used for a heterozygous organism, and hybrid is a term used for a homozygous organism.

Purebred is a term used for a homozygous organism, and hybrid is a term used for a heterozygous organism.
Purebred is a term used for a homozygous organism, and hybrid is a term used for a heterozygous organism.
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The terms "purebred" and "hybrid" refer to the genetic composition of organisms:

  • Purebred refers to an organism that has a homozygous genotype, meaning that it has two identical alleles for a trait (either dominant or recessive).
  • Hybrid refers to an organism that has a heterozygous genotype, meaning that it has two different alleles for a trait.

The correct response to describe the difference is:

Purebred is a term used for a homozygous organism, and hybrid is a term used for a heterozygous organism.