The second parent is heterozygous, so their genotype would be Tt, and their phenotype would be tall.
What are the alleles for a heterozygous plant?
Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white). Carriers are always heterozygous.
What is the heterozygous tall pea plant?
In pea plants height is characterized by having two alleles T(tall) and t(dwarf). Since heterozygous tall pea plant (Tt is the genotype in heterozygous) is crossed with a dwarf pea plant (tt is the genotype in dwarf). Phenotypic ratio of the crossed plants is calculated as shown in the above table.
What is the phenotype of a pea plant with a heterozygous genotype for height?
Tall. What is the phenotype of a pea plant that is heterozygous ( Tt )? It is also tall. The answer is yes, two different genotypes can result in the same phenotype.
What represents a heterozygous allele?
An allele is one of two or more alternative forms of a gene, and they are found at the same place, or locus, on the chromosome. Heterozygous refers to having different alleles for a particular trait. If the two versions are different, you have a heterozygous genotype for that gene.
Is xy homozygous or heterozygous?
They inherit two different sex chromosomes: X and Y. Because these two chromosomes are different, the terms “homozygous” and “heterozygous” don’t apply to these two chromosomes on men. You may have heard of sex-linked diseases, like Duchenne muscular dystrophy.
Is BB homozygous or heterozygous?
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.
How do you tell if a tall pea plant is homozygous or heterozygous?
Explanation:
- A test cross is performed on a tall pea plant to determine its genotype.
- The gametes containing allele ‘T’ and ‘t’ will be in the ratio of 1;1 if the given tall plant is heterozygous.
Is a tall pea plant homozygous or heterozygous?
Use a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous).
What is the genotype of a homozygous and heterozygous tall pea plant?
Thus, if the result is all tall plants then the genotype of the parent will be homozygous dominant (TT) and if the result is 50% tall and 50% dwarf then the parent will be heterozygous dominant (Tt).
What are the two alleles for height in pea plants?
In pea plants, the gene for height has two alleles: tall (T) and short (t).
What is the genotype of a pea plant homozygous for height?
genotype TT
a homozygous tall pea plant will have the genotype TT. A homozygous short pea plant will have the genotype tt.
When a pea plant contains two different genes alleles for height it is said to be a?
Heterozygous means to have 2 different alleles for a trait.
Is HH heterozygous or homozygous?
Individuals with dominant phenotypes can be either homozygous (HH) or heterozygous (Hh). When a recessive (hh) is selected against, a reservoir of recessive alleles remains in the heterozygotes (Hh) of the dominant phenotype.
Is AA heterozygous or homozygous?
Homozygous
Homozygous and Heterozygous
If an organism has two copies of the same allele, for example AA or aa, it is homozygous for that trait.
What represents homozygous and heterozygous allele?
Homozygous means two copies of the same allele, such as two dominant alleles. Heterozygous means one of each type of allele, one dominant and one recessive.
What is heterozygous example?
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
What does Zygous mean in heterozygous?
The Greek root word for all three terms, “zygous” is derived from zugos which means yoked. “Zygous” refers to the fact that each gene in a diploid organism has two “yoked” alleles. Similarly, the word zygote refers to the diploid cell that results from the fusion of two haploid cells (egg and sperm).
What are the letters for heterozygous?
Heterozygous refers to a genotype with two different alleles (i.e. Bb, Rr, etc.) and homozygous refers to a genotype with two of the same alleles (i.e. BB, bb, etc.). We can make an even further distinction by saying something is homozygous dominant (BB) or homozygous recessive (bb).
Which is dominant allele A or B?
Dominant alleles are seen as an uppercase of a letter; for example, B. Recessive alleles are seen as a lower case of a letter; b.
Is BB and BB homozygous?
The remaining terms to discuss pertain to the compositions of the genotypes. A genotype such as either BB or bb the alleles are identical. An individual with this type of genotype is called homozygous.