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Vlad [161]
2 years ago
12

What role did Marco Polo serve in the Mongol Empire?

Biology
2 answers:
luda_lava [24]2 years ago
5 0

Answer:

Marco polo worked as an administrator for 17 years.

Explanation:

Upon reaching China, Marco Polo entered the court of powerful Mongol ruler Kublai Khan, who dispatched him on trips to help administer the realm. Marco Polo remained abroad for 24 years

Aleks [24]2 years ago
4 0

Answer:

b

Explanation:

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If a researcher has a DNA sample with a concentration of 0.6 micrograms per microliter, how many microliters of DNA must be tran
Art [367]

Answer:

0.325 microliters

Explanation:

1 microgram = 1000 nanograms

DNA sample concentration= 1000 X 0.6 = 600 nanograms / microliters

We need a total of 50 microliter reactions, and the concentration should be 3.9 nanograms per microliter.

So, we need total 50 X 3.9 = 195 nanograms in 50 microliters.

Therefore, it required 195 / 600 = 0.325 microliters of DNA sample to be transferred.

7 0
3 years ago
Which two human body systems need to coordinate to move food through your body?.
Nadya [2.5K]

Answer:

The Digestive System absorbs nutrients from food and delivers them to the bloodstream, where the Circulatory System transports them to their destination. Filters waste from meals and transports it through the intestines and out of the body.

Explanation: Answer above

8 0
2 years ago
In Drosophila, a developmental mutation called ssa (spineless aristapedia) results in flies with mini leg parts on the antennae.
34kurt

Given our understanding of genetics, we can confirm that the gene in question is of the homeotic type.

<h3>What is a gene? </h3>
  • In biology, we refer to a gene as the most basic unit of genetic information.
  • It is a segment of DNA that encodes for a certain trait that <u>may or may not be expressed.</u>
  • A gene carries the information for a specific trait, for example:

             1) Eye color

             2) Body organization

             3) Height

<h3 /><h3 /><h3>What does it mean for a gene to be homeotic?</h3>
  • In the case of this question, the gene in question is a homeotic gene.
  • Homeotic genes are those that are in charge of the organization of the organism's body.
  • These genes control the <u>general pattern of the body</u>, such as where the arms and legs will be, and so on.
<h3 /><h3 />

Therefore, given the definition of a homeotic gene, we can confirm that this is the type that best fits the description of the mutation in the question since it affected the formation and normal organization of the body.

To learn more about homeotic genes visit:

brainly.com/question/7991651?referrer=searchResults

4 0
2 years ago
How were the novae on Venus similar to the landforms in Gerva's computer model?
earnstyle [38]
Cause they both on the screen what else
4 0
2 years ago
The length of linker DNA segments varies somewhat among organisms. The length of the linker DNA in sea urchin is 110 base pairs.
nasty-shy [4]

Answer:

362 nucleosomes

Explanation:

A nucleosome repeat is made up of the DNA (146 bp) wrapped around the core nucleosome particle and the linker DNA (110 bp as in this situation). We can conclude that, every repeat stands for 256 (146 + 110) base pairs of DNA.

We are given the length of the entire region to be 92,672 bp long,

To determine the number of nucleosomes to organize the region into the 10nm fiber structure

Let,

Number of nucleosomes =

the length of the entire region

------------------- -----

base pairs of DNA.

= 92,672

-------

256

= 362 nucleosomes

Therefore, 362 nucleosomes is needed to structure the region into the 10nm fiber structure.

5 0
3 years ago
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