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3241004551 [841]
2 years ago
13

Introduced species can threaten biodiversity because they

Biology
1 answer:
LekaFEV [45]2 years ago
7 0
They create competition with some certain niche
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a dna restriction enzyme cuts dna at a specific sequence. if a restriction enzyme that cuts at the dna sequence gaattc were used
vitfil [10]

Four bands appear in gel electrophoresis. Gel electrophoresis is an experimental method used to separate mixtures of DNA, RNA, or proteins by molecular size.

DNA is negatively charged, so when a current is applied to the gel, the DNA migrates towards the positively charged electrode. Fragments are ordered by size because short DNA strands migrate through the gel faster than long strands. There are some basic steps for performing gel electrophoresis outlined below. 1) pour the gel, 2) prepare the sample, 3) load the gel, 4) run the gel (expose it to an electric field), 5) stain the gel. Gel electrophoresis is a technique for separating biomolecules by size. Separation of these molecules is achieved by placing them in a small pore gel and creating an electric field across the gel

To know more about gel electrophoresis visit:

brainly.com/question/9437877?referrer=searchResults

#SPJ4

4 0
1 year ago
In terms of environmental economics, the only factions that disagree with each other are environmentalists and economists. True
MatroZZZ [7]

The correct answer is FALSE.

It is false that the only factions which disagree with each other is economists and environmentalists.

Economists are referred to as practitioners which are found in the social science and their work is to discipline economics.

A person can develop, study and apply some concepts and theories from economic.

Environmentalists are termed as supporters who supports the movement of the environment.

There is a ethical movement of the movement or political which works to protect and improve quality of environment which is natural.

Environmentalist believes in environmentalism philosophy.

3 0
3 years ago
Read 2 more answers
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

q^2\\= (0.3)^2\\= 0.09

As per Hardy-Weinberg's second equation of equilibrium

p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42

Hence, option C is correct

7 0
2 years ago
Similarities between the computer and the human body.
Nikolay [14]

Answer:

Both of them have memory, both of them use electrical signals, both of them can retrieve and transmit data, both of them have partitions and both of them connect data in order to reach to conclusions which are logical and working

Explanation:

4 0
2 years ago
A.
snow_lady [41]

Answer:

A) Light pollution both attracts and repels migratory birds

In addition to the many hazards that exist in urban areas, cities typically lack the food resources and cover that birds need during migration or when raising their young. ... Darkening skies at night during migration season makes it easier for birds to navigate.

Explanation:

Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by availability of food. It occurs mainly in the northern hemisphere, where birds are funneled on to specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea.

6 0
2 years ago
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