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3 years ago

How is crude oil brought to the surface

1 answer:

8 0

In some places, especially some new wells that have just been drilled,
the oil is under pressure, and it brings itself to the surface as soon as
you drill a 'pipe' for it to rise through.

In most oil wells, there's a pump bobbing up and down day and night,
pumping the oil up out of the well.

When the well is so old that even a pump isn't very effective, water is
often forced down the well under pressure, and the water forces the
oil back up through the pipe.

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In mice, brown eyes (B) are dominant over blue (b). A homozygous brown-eyed male mouse mates with a blue-eyed female and they ha

bazaltina [42]

Parents: Homozygous brown-eyed (M) - B B
blued-eye (F) - b b [since blue (b) is recessive then and brown (B) is dominant then
   in order for the blue gene to
   show the you need double recessive or the brown
gene absent

Offspring:
So based on the Punnett cross then you realize that all the possible of spring carry the genotype B b and as such the phenotype brown eyes

8 0

3 years ago

The major structural difference between chromatin and chromosomes is that the latter are

labwork [276]

Answer:

The major structural difference between chromatin and chromosomes is that the latter are more organized and condensed.

Explanation:

Chromatin is genetic material packaged into a complex by special proteins (histones). That complex is in the form of uncoiled structures, so chromatin fibers are long and thin. Chromatin structure is permissive to DNA replication, transcription and recombination events.

On the other hand, chromosomes are highly condensed structures of genetic material that are formed just before the cell division.

5 0

3 years ago

I give the cells energy. Which organell

Dmitrij [34]

Answer:

Explanation:

Cell memeberane

4 0

2 years ago

Read 2 more answers

What is the definition of epistasis?

ollegr [7]

The definition of Epistasis in gene biology is Choice D: when the allele of one gene masks the phenotype of another gene

Definition:

When the phenotypic effect of alleles at one gene are masked by alleles of another gene.

In essence, a gene is said to be epistatic when its presence suppresses the effect of a gene at another locus.

It is important to know that Epistatic genes are often called inhibiting genes because of their effect on other genes which are described as hypostatic.

Additionally, there are six common types of epistasis gene interactions:

Dominant

Dominant inhibitory,

Duplicate dominant,

Duplicate recessive,

Polymeric gene interaction,

Recessive.

brainly.com/question/24167831

6 0

2 years ago

According to the article, what is the reason fungal diseases have been able to evolve and spread rapidly? animal activity increa

uranmaximum [27]

Answer:

Human activity

Explanation:

I read the article

4 0

2 years ago

Read 2 more answers