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serious [3.7K]
3 years ago
13

he small structures inside cells with specific functions that work together to do a job inside the cell are ____________________

. a organism b tissue c organelle d organ
Biology
1 answer:
Inessa [10]3 years ago
8 0

Answer:

C. Organelle

Explanation:

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Enzymes that catalyze consecutive steps in a metabolic pathway often cluster together in a cell.
Mama L [17]

Answer: pathway intermediates are prevented from entering alternative metabolic pathways

Explanation: the clustering of enzymes in a metabolic pathway ensures that the product of one enzyme is efficiently transferred to the next enzyme in the pathway. So, the clustering prevents pathway intermediates from being diverted into alternative metabolic pathways.

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3 years ago
In a dihybrid cross of two heterozygous individuals, you expect a 9:3:3:1 phenotypic ratio in the offspring, but observe a ratio
almond37 [142]

Answer:

e. Epistatic interaction of the two genes

Explanation:

The 9:7 ratio is typical of the Duplicate Recessive Epistasis.

The expected phenotypic ratiio of the offsrping of a dihybrid cross is:

9 A_B_

3 A_bb

3 aaB_

1 aabb

In the Duplicate Recessive Epistasis, the A_bb, aaB_ and aabb individuals all have the same phenotype, making for the ratio 9:7. What those three genotypes have in common is that in all of them at least one of the two genes  is homozygous recessive (either <em>aa</em> or <em>bb</em>).

This usually happens one the products of genes A and B are enzymes of the same metabolic pathway.

Whenever both A and B are present, the pathway can produce the final product and a certain phenotype. However, if any of the dominant alleles is missing, the enzyme is not produced and therefore the final product of pathway is not produced, giving the other phenotype.

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3 years ago
What are chemicals that have certain hallucinogenic effects on human nervous systems
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Ayahuasca, DMT, LSD, mescaline, psilocybin, DXM, Ketamine , PCP, salvia.

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How does molecular genetics add to our understanding of genes
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<span>molecular genetics adds to our genes by DNA molecules.</span>
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