A geneticist describes the phenotype of an individual with the alleles dd as homo-zygous recessive. In heterozygous individuals, it is masked by the dominant allele.
<h3>Dominant and recessive alleles</h3>
In diploid organisms, an individual receives two gene forms or 'alleles' for the same gene locus.
An individual is heterozygous when receives two different alleles for the same gene locus, whereas an individual is homo-zygous when receives the same alleles for a gene locus.
In cases of complete dominance, the dominant allele completely masks the recessive allele in heterozygous individuals.
Learn more about recessive alleles here:
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Mediterranean is the answer
Answer:
Option-D
Explanation:
The skin toughness trait is determined by the genes which can control the components of skin like the amount of the collagen and the elastin. Also, the trait is influenced by the environmental factors which can act as a stimulus to either increase or decrease the components of the skin.
In the given case, when you walk barefooted develops the callus but when you walk with the shoes you do not develop calluses. Here the development of calluses is influenced by the environment which can lead to the increased production of collagen genetically which provides strength.
Thus, Option-D is the correct answer.
Answer:
<h2>B</h2>
Explanation:
Glycolysis is the process of production of pyruvate from glucose by various enzymatic steps.
This pyruvate is further used in different ways; as it is differently used in the presence of oxygen or in the absence of oxygen.
In the absence of oxygen, lactate is generated form pyruvate, as given here, if this enzyme is non-functional, then lactate would not be produced.
In the presence of oxygen, pyruvate is oxidized in TCA cycle and finally through electron transport chain, energy in generated.
