Is DD dominant or recessive?
In genetics, the dimple version of a gene is D and the non-dimpled version is d. Remember, we have two copies of most of our genes, one from mom and one from dad. You will have dimples if both copies are D (DD) or if only one is D (Dd). That is the definition of dominant.
What are the 3 genotypes?
There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive).
What is the organism’s phenotype if its genotype is DD?
Genetics
| Question | Answer |
|---|---|
| Genotype | The genetic makeup of an organism; represented by a 2-letter code |
| Phenotype | The way an organism looks or behaves; determined by its genotype |
| Homozygous | An organism with two alleles that are the same. Ex. DD or dd |
| Heterozygous | An organism that has two different alleles for a trait. Ex. Dd |
What is FF genotype?
Your Alpha-1 genotype is FF. This means that you have two copies of the F mutation in your Alpha-1 genes. This is a rare form of alpha-1 antitrypsin deficiency. The F mutation produces a dysfunctional alpha-1 protein product.
Are attached earlobes rare?
Attached earlobes are not rare but are also not commonly found. Earlobes of such type are small in size and are attached directly to the side of the head. This kind of lobe’s structural formation is due to the absence of the dominant allele in the chromosomes.
Is DD heterozygous or homozygous?
| Individual | Genotype | |
|---|---|---|
| Sam (father) | DD | homozygous dominant |
| Sally (mother) | dd | homozygous recessive |
| Susan (child) | Dd | heterozygous |
What is a DD individual biology?
Sally’s genotype is “dd”, so she is also considered homozygous. Susan’s genotype is “Dd”, so she is considered HETEROZYGOUS (has two different alleles for a specific gene). Although Susan has both the allele “D” to make dimples and the allele “d” in her genotype, her phenotype is the presence of dimples.
Are ears inherited from mom or dad?
Every person will inherit genes from their parents that affect the shape, size, and prominence of their ears. It is not uncommon to see large, protruding ears passed down from parent to child.