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The AA gene typically refers to a genetic variant associated with specific traits or conditions, often denoted in the context of single nucleotide polymorphisms (SNPs) or other genetic markers. The term can also refer to the "A" allele in a broader genetic context, particularly in studies related to population genetics or disease susceptibility. However, without a specific context, it's important to note that "AA gene" could refer to different genes or variants in various genetic studies.
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Allelic pairs such as AA and AA are said to be?
Homozygous, meaning they have the same alleles for a specific gene. In this case, the allele is the same for both members of the pair - AA.
Which genotype is normally not found in gamete?
Gametes are haploid cells, meaning they contain only one set of chromosomes, resulting in a single allele for each gene. Therefore, a diploid genotype, which has two alleles per gene (represented as AA, Aa, or aa), is not found in gametes. Instead, gametes will carry only one allele from each gene pair, leading to genotypes like A or a in the case of a diploid organism.
What would be used to represent the genotypes of these parents?
The genotypes of parents can be represented using genetic symbols, usually letters, to denote the alleles present at each gene locus. For example, for a specific gene with two alleles (A and a), a parent with genotype AA would have two dominant alleles, while a parent with genotype aa would have two recessive alleles. The offspring's genotype could be represented by combining the symbols from each parent (e.g., Aa if one parent is AA and the other is aa).
What is the difference between homozygous and heterozygous?
Heterozygous is when the organism has two different alleles for a traitHomozygous is when they have two of the same the sameexample of homozygous= two blue eyesexample of heterozygous= one blue eye and one green eyeHomozygous is when the combination of alleles are the same. EX: AA or BB. Heterozygous are when the combination of alleles are different. EX: Aa or Bb.
A plan with one dominate and one recessive gene?
In genetics, a plan with one dominant and one recessive gene can be described by a heterozygous genotype, such as Aa, where "A" represents the dominant allele and "a" represents the recessive allele. The dominant gene will express its trait in the phenotype, overshadowing the recessive gene. For example, if "A" codes for purple flowers and "a" for white flowers, a plant with the genotype Aa will have purple flowers. This illustrates how dominant traits can mask the presence of recessive traits in an organism.
Suppose a women with normal colored skin and having an albino mother married an albino man What would be the genotype of the woman?
The albino woman has to be AA. So the man has to be either AA or Aa in order to be normal. So if they have a baby and its albino it has to contain the AA gene. a a A Aa | Aa ---------------- A Aa | Aa doesn't work.. All outcomes are normal. a a A Aa | Aa ----------------- a AA | AA these combination outcomes 50% chance of an albino baby. This means the man is Aa Heterozygous dominant.. the mother is AA homozygous recessive.. and the baby is the same as the mother. AA...
What is hmozygous?
A cell is said to be homozygous for a particular gene when identical alleles of the gene are present on both homologous chromosomes. For example, if the alleles are AA or aa the cell is homologous for that trait. It is heterozygous if it is Aa
Is albinism a recessive trait or dominant?
Recessive. The trait will only show up if both parents have the gene recessively (aa). If the genetic make up is Aa or AA, there will be melanin production, meaning albinism is an aa gene only. Albinism is a recessive allele.
Allelic pairs such as AA and AA are said to be?
Homozygous, meaning they have the same alleles for a specific gene. In this case, the allele is the same for both members of the pair - AA.
What phenotype is produced by AA?
B.
What does the notation AA means to genetics?
In genetics, the notation AA represents a genotype where both alleles at a particular gene locus are the same and are dominant. This means that both copies of the gene are identical and code for the same trait.
Differentiate between homozygous and heterozygous?
Homozygous refers to having two identical alleles of a particular gene, while heterozygous refers to having two different alleles of a particular gene. In homozygous individuals, both alleles are the same (e.g., AA or aa), while in heterozygous individuals, the alleles are different (e.g., Aa).
Which genotype is normally not found in gamete?
Gametes are haploid cells, meaning they contain only one set of chromosomes, resulting in a single allele for each gene. Therefore, a diploid genotype, which has two alleles per gene (represented as AA, Aa, or aa), is not found in gametes. Instead, gametes will carry only one allele from each gene pair, leading to genotypes like A or a in the case of a diploid organism.
What is incomplete dominance?
Incomplete dominance is where the phenotype of the heterozygote is intermediate to both the heterozygotes. The classic example of this phenomenon is pink snapdragons. If you cross red and white snapdragons, you get pink snapdragons, because neither the red or white allele is dominant to the other.
Why is it genetically impossible for a cat to be orange without being a tabby?
The 'O' gene found in an orange tabby cat suppresses a gene called the 'aa' gene. This 'aa' gene decides if the tabby pattern will be blocked in a cat or not. Because this gene is suppressed in an orange cat there is always a tabby pattern. This means that there is no such thing as a solid orange cat and a cat with patterns in its fur is considered to be a tabby. Thus all orange cats are tabby cats.
Can a mother with AA have a child with OO blood?
We are looking for the possible blood types of a baby.Available information:Mother type AA = contributes A gene onlyBaby is type O --can only be OO = must get O gene from each parentBaby receives one gene from each parent: Mom type AA + Dad type AO = baby type AA, AOMom type AA + Dad type BO = baby type AB, AOMom type AA + Dad type OO = baby type AOGenerally speaking, because the mother cannot contribute the O gene, her children cannot be OO or Type O. HOWEVER: There is more to ABO blood typing that just the ABO gene.There is also an inhibitory gene that will change any genotype into the phenotype O.Therefore a person with genetically AB blood can be tested as having Type O.If the baby's inhibitory gene has been turned "on", then no matter what ABO genes he receives from his parents, he will test out as a Type O.
What is the difference between heterozygous and homozygous alleles?
You're looking at a gene which contains 2 alleles (meaning variations of that gene). Let's call it "A."Remember that you get 2 copies of EACH gene (one from mom, one from dad).
