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jasenka [17]
4 years ago
10

You tested for the presence of four different by adding three test tubes to the DONE

Biology
2 answers:
Anna [14]4 years ago
8 0

Answer:

its a

Explanation:

trapecia [35]4 years ago
6 0

NUTRIENTS & INDICATORS

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The feature on the ocean floor at is call a(n)
lilavasa [31]

Answer:deep Ocean Frencia

Explanation:

7 0
3 years ago
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During which processes does independent assortment of chromosomes occur?
charle [14.2K]

Answer:

meiosis I

Explanation:

Independent transmission is Mendel's second law. Like any Mendel law it is based or is about the transmission of alleles. Therefore, the law of independent transmission is based on the fact that when forming gametes, the alleles of one gene are segregated independently before the segregation of the alleles of another gene. This second law can not only be applied to the characters that Mendel analyzed, which were two genes with two possible alleles, this law is fulfilled with more than two characters. We must bear in mind that alleles are the different forms that a gene can present.

On the other hand we have the concept of meiosis I which is a type of cell division that in animals generally gives rise to gametes for sexual reproduction or sexual spores (in plants and fungi). That is to say in mitosis we find that there is only a cell division between homologous chromosomes, so that from a tetraploid number (4n) we pass to a diploid number (2n). While in meiosis we find that there are two cell divisions in which we go from a tetraploid number (4n) to a haploid number (n). This means that this is a reductive process. These haploid cells will join together to give rise to a diploid cell. Another important concept to consider in meiosis is the formation of chiasmas that are created between non-sister chromatids, thanks to this phenomenon the exchange of genetic material occurs.

5 0
4 years ago
The product of the lac z gene is an enzyme. What does this enzyme do in the bacterial cell?.
Mice21 [21]

The product of the lac z gene is an enzyme, this enzyme do in the bacterial cell that enzyme is known as β-galactosidase, that's an important a part of the metabolism of lactose.

<h3>What are lactose restriction enzyme ?</h3>

When a restriction enzyme along with BamHI is used to reduce the plasmid, it might reduce the circle at one place. The reduce could open up the circle withinside the LacZ gene. This is due to the fact gene cloners have located a bit of DNA that has many limit enzyme reducing  in the LacZ gene.

It cleaves (separates) a disaccharide lactose molecule into a ways greater digestible glucose and galactose lacZ encodes β-galactosidase (LacZ), an intracellular enzyme that cleaves the disaccharide lactose into glucose and galactose.

Read more about the disaccharide :

brainly.com/question/13283251

#SPJ4

3 0
3 years ago
A human liver cell has a different size and shape from a human muscle cell. What is the best explanation for these differences?
mylen [45]

Answer:

A

Explanation:

<u>A human liver cell would have a different size and shape from a human muscle cell because they perform different functions in the body.</u>

<em>The shape a cell would assume and its size depends on the function the cell performs. The functions of the liver in the body of humans differ greatly from the functions of muscles. While the former helps in detoxification, deamination, digestion, etc., the latter helps in support, movement, etc. </em>

The correct option is A.

6 0
3 years ago
True or False: Water molecules, as a liquid, are very spread apart because of their attractions for one another.
Alex_Xolod [135]

Answer:

i think ; true

Explanation:

3 0
4 years ago
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