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3 years ago

explain how the cell theory was reached by a collaboration of experiments and ideas from numerous scientists

1 answer:

7 0

The discovery of the cell was made possible by the invention of the microscope, which was made possible by improved lens-grinding techniques. Antoni van Leeuwenhoek (1632-1723), a Dutch tradesman, learned to grind lenses and assemble them into simple microscopes.

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Lysine is a monomer used to make a proteins.It is a

Usimov [2.4K]

Solution:

A basic amino acid which is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.

Proteins: the macromolecule and the monomer: Proteins are about 50% of the dry weight of most cells, and are the most complex of the macromolecules we will talk about, because there are 20 different monomers or building blocks, called amino acids.

Thus this is the required answer.

4 0

3 years ago

How could you test to see if soil temperature was responsible for a variation in flower color?

amm1812

Make a test of experimental groups for flowers with warmer soil and another with regular soil and to be sure cold soil.

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3 years ago

How do muscles work in pairs to move the body?

tigry1 [53]

So you could be strong

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3 years ago

imagine that ou are stduying a very large population of moths that is isolate d from gene flow.A single gene controls wing color

algol [13]

About the question:

I failed to find the complete question. However, I will explain why this population is considered to be in Hardy-Weinberg equilibrium, and what the destiny of the alleles is.

Answer:

This population is in equilibrium because it accomplishes all the H-W assumptions for a population in equilibrium. Genetic nor allelic frequencies will change generation after generation. Alleles will remain equal.

Explanation:

Available data:

A single gene controls wing color
Half of the moths have white-spotted wings
half of the moths have plain brown wings
W allele is dominant and expresses white wings
w allele is recessive and expresses brown wings
Individuals mate randomly
No natural selection

We will know by theory if this population is or is not in equilibrium Hardy-Weinberg if the population is in concordance with the assumptions of the theory. So let us first analyze the Hardy-Weinberg assumptions for a population in equilibrium:

• Random matings: Any individual get crossed with any other individual

• No superposed generations: each individual can leave their gametes in the pool only once.

• No mutations: No mutations originate any new gametes.

• No migration: No incorporation of gametes from other populations.

• Infinite population size: the probabilities of randomly taking an A gamete from the pool are p, and the probability of taking a B gamete is q.

• No natural selection: Each individual has equal surviving and reproducing probabilities as any other, contributing proportionally to the gamete pool.

So, the exposed population

- is isolated, meaning that there is no gene flow from other populations. No new genes will be introduced.

- has no mutations, so no allele will change to express a new form

- individuals mate randomly

- there is no natural selection acting on this group as an evolutive force that might alter the equilibrium.

Genetic nor allelic frequencies will change generation after generation.

In a Hardy-Weinberg population, where allelic frequencies are p and q (assuming a diallelic gene), genotypic frequencies after one generation of random matings are p², 2pq and q². The allelic frequencies, as well as the genotypic frequencies, remain equal after successive generations. Alleles will remain in the population from many generations.

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3 years ago

Which of the following pairs of career descriptions and work tasks is not correctly matched?

Tasya [4]

Answer: A. manipulate bacterial strains to be less pathogenic

Industrial microbiologist- manipulate bacterial strains to be less pathogenic is not correct matched.

Explanation:

An industrial microbiologist supervises the microbial activities employed in the industry like cheese making in the food industry. Microbiology is the study of micro organisms which helps in tackling various diseases, making use of microbes in manufacture of various things.

A medical microbiologist perform the function of treating infections by discovering the causes of infectious diseases. A public health microbiologist studies a population to track the microbial diseases among that population and suggest measures to tackle it.

Agricultural microbiologist applies microbiology in agriculture by discovering microbial causes of crop diseases and finding appropriate solutions.

8 0

3 years ago