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What is homozygous and heterozygous genotypes and the notation used to express them?
Homozygous or heterozygous are terms used to describe the genotype of a diploid organism at a locus of the DNA. Homozygous means that the organism has the same two alleles at that locus denoted by AA for dominant alleles or AA for recessive. Heterozygous means that the organism has two different alleles at that locus and is denoted Aa.
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What is the differences between homozygous dominant and homozygous recessive and heterozygous?
Homozygous dominant individuals have two copies of the dominant allele for a trait, homozygous recessive individuals have two copies of the recessive allele, and heterozygous individuals have one copy of each allele. Homozygous dominant and heterozygous individuals will express the dominant trait, while homozygous recessive individuals will express the recessive trait.
Compare homozygous alleles to heterozygous alleles?
Homozygous alleles refer to having two identical alleles for a particular gene (e.g., AA or aa), while heterozygous alleles refer to having two different alleles for a specific gene (e.g., Aa). Homozygous individuals will express the same trait, while heterozygous individuals may show a mix of the traits associated with each allele.
What is the difference between homozygous and heterozygous organism?
if for example we had a yellow and a blue flower yellow being dominant (Y) and blue being recessive (y) a homozygous organism has the phenotype of either being YY or yy and a heterozygous organism could only be Yy.
What is an organism with 2 alleles for 1 trait that are different?
The answer to your question, "What is an organism with 2 of the same alleles for a trait called?" is homozygous. it is just homozygous-By SciienceFreak
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
What is homozygous dominate heterozygous and homozygous recessive look like?
Homozygous dominant individuals carry two identical dominant alleles (e.g., AA) and typically express the dominant trait. Heterozygous individuals have one dominant and one recessive allele (e.g., Aa), exhibiting the dominant trait while carrying the recessive one. Homozygous recessive individuals possess two identical recessive alleles (e.g., aa) and express the recessive trait. The phenotypic expressions of these genotypes depend on the specific traits being studied.
What is the differences between homozygous dominant and homozygous recessive and heterozygous?
Homozygous dominant individuals have two copies of the dominant allele for a trait, homozygous recessive individuals have two copies of the recessive allele, and heterozygous individuals have one copy of each allele. Homozygous dominant and heterozygous individuals will express the dominant trait, while homozygous recessive individuals will express the recessive trait.
Is it easier to analyze genotype by observing phenotype in organisms with complete dominance or in organisms with incomplete dominance?
It is easier to analyze genotype by observing phenotype in organisms with incomplete dominance (also known as codominance), because in incomplete dominance the individual will show a specific phenotype for each situation, whether it is homozygous dominant, heterozygous, or homozygous recessive. For example, in flowers, such as the ones that Mendel studied, a homozygous dominant flower will be red, a homozygous recessive flower will be white, and a heterozygous flower will be pink. In complete dominance, a heterozygous will only express the dominant phenotype, as opposed to incomplete dominance, in which a heterozygous individual will express a phenotype that is representative of both of the dominant and recessive traits. Because heterozygous individuals in complete dominance express the dominant phenotype, it is hard to determine whether the genotype is homozygous dominant or heterozygous for the trait. Hope this helps!
How many genotypes are there for the smooth pod phenotype?
The smooth pod phenotype in pea plants is typically associated with a specific gene controlled by a single locus with two alleles: one for smooth pods (dominant) and one for wrinkled pods (recessive). The possible genotypes for the smooth pod phenotype are homozygous dominant (SS) and heterozygous (Ss). Therefore, there are two genotypes that can express the smooth pod phenotype.
If you have two copies of the same allele are considered to be for that traits whereas if you have two different alleles you are considered to be for that trait?
Having two copies of the same allele for a trait is termed homozygous, while having two different alleles for a trait is heterozygous. Homozygous individuals will display the trait determined by that allele, while heterozygous individuals may express either allele's trait, depending on dominance relationships.
Compare homozygous alleles to heterozygous alleles?
Homozygous alleles refer to having two identical alleles for a particular gene (e.g., AA or aa), while heterozygous alleles refer to having two different alleles for a specific gene (e.g., Aa). Homozygous individuals will express the same trait, while heterozygous individuals may show a mix of the traits associated with each allele.
What is the difference between homozgous and heterozygous?
Heterozygous vs. Homozygous: These terms refer to genetic mutations. There are two copies of the protein codes in the genetic code. If one copy is normal and the other has the mutation, it is said to be heterozygous. If both copies have the mutation, it is said to be homozygous. For example: A/A -- homozygous. A/a -- heterozygous. a/A -- heterozygous. a/a -- homozygous.Homologous refers to the pair of chromosomes that are the same whilst Homozygous refers to the fact that alleles of a gene pair are the same
What is the difference between homozygous and heterozygous organism?
if for example we had a yellow and a blue flower yellow being dominant (Y) and blue being recessive (y) a homozygous organism has the phenotype of either being YY or yy and a heterozygous organism could only be Yy.
What is an organism with 2 alleles for 1 trait that are different?
The answer to your question, "What is an organism with 2 of the same alleles for a trait called?" is homozygous. it is just homozygous-By SciienceFreak
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
When both alleles of gene are different what is individual?
The individual is heterozygous for that gene. This means they have two different alleles for the gene, one inherited from each parent. The individual will express the dominant allele if present.
