A human with heterozygous genotype can have a dominant phenotype if one of the alleles complete mask the effects of the other.
- Heterozygous genotype involves two different alleles, unlike homzygous genotypes in which the alleles are the same.
- When the two alleles of an heterozygous genotype exert equal effects on one another, they are said to be codominant.
- When one of the alleles of an heterozygous genotype incompletely exert its effects on the other allele, it is said to be incomplete dominance.
- When one of the alleles complete dominates and masks the effects of the other allele, it is said to be dominant.
Hence, a dominant allele will always produce a dominant phenotype even if the genotype of the organism is heterozygous.
More on genotypes can be found here: brainly.com/question/14398652
I think the correct answer from the choices listed above is option B. You can find methanogens in the human intestines. These organisms can work with or without oxygen. Too much of oxygen for them is toxic. They are obligate anaerobes.
Answer:
down syndrome
Explanation:
people with down syndrome have an extra chromosome in the twenty-first pair
the answer is a because if the model is based on experimental data it wont be good unless it has been tested.
The determining factors are; climate, environment, and Human Activity.
P.S.: try those...lmk if they are right ;)
