Answer:
The sneers are muscular and skeletal systems
The genetic basis for lactose intolerance is a change in the nucleotide sequence outside of the lactase gene.
Lactose is normally hydrolyzed and broken down in the small intestine.
Lactose intolerance is due to mutations in the MCM6 gene, which regulates the expression of the lactase gene associated with the persistence of enzyme activity in adults.
The lactase enzyme is synthesized from the expression of the LCT gene.
The expression of the LCT gene is regulated by a protein complex (MCM), which is partly encoded by a specific sequence of the MCM6 gene located on chromosome 2q21.
A genetic alteration of this gene, specifically in position 13910, is responsible for the persistence or non-persistence of lactase in the adult.
The nucleotide sequence C / C (Cytosine / Cytosine) would be the one present in the non-persistence of lactase.
Therefore, we can conclude that lactose intolerance is due to a decrease or absence of the activity of the lactase enzyme and that it is due to a change in the nucleotide sequence that helps to control the expression of the LCT gene.
Learn more about lactose intolerance here: brainly.com/question/17178339
You didn’t post the chart
The answer is A. a gene is a form of a trait, and alleles make up genes
Rock Mineral
Explanation:
Rock minerals are naturally occurring inorganic solids with a definite chemical composition and an orderly arrangement of atoms.
Minerals forms as a result of combination of different elements.
The minerals makes up rocks. A rock is an aggregate of minerals.
- They are naturally occurring: minerals are not formed in the laboratory through a synthetic process.
- The are inorganic: not formed by living organisms.
- Solids: minerals are in the solid phase of matter
- definite chemical composition: they are compounds and not mixtures.
- Orderly arrangement of atoms: they are crystalline
learn more:
Rocks brainly.com/question/2817889
#learnwithBrainly
