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Charra [1.4K]
3 years ago
12

In Biosafety Level 2 labs, workers must have specific training in handling pathogenic agents and be supervised by scientists com

petent in handling these agents.
A. True
B. False
Biology
1 answer:
krek1111 [17]3 years ago
8 0

Answer:

True

Explanation:

There are four biosafety levels according made to the pathogenicity of the organism. BSL-1 is used for those microbes which do not cause diseases in normal healthy person. BSL-2 is applicable for those microbes which posses moderate risk for humans and against whom therapeutic intervention is normally present in the market.

The worker who uses BSL-2 labs must be trained specifically for handling pathogenic microbes and they should be supervised by competent scientists so that any accident can be avoided. Therefore the statement is true.

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He type of mutation represented below is a(n) __________. the big red fly had one eye (wild type) the fbi gre dfl yha don eey (m
HACTEHA [7]

Answer:

Framshift mutation

Explanation:

The frame shift mutation is also known as reading frame shift or framing error mutation, during which an insertion or deletion occurs at a single position but it effects the sequence of whole gene in such a way that complete sequence is disturbed.

If we look at the sequence given in example:

Wild sequence: the big red fly had one eye

Mutant:               the fbi gre dfl yha don eey

An insertion mutation occured at the start of sequence big, where f got inserted. We know that a 3 set of nucleotides called codon is transcribed and translated into single amino acid of protein. So when f got added it disturbed the frame and all the sequences of next codons got altered.

  • big  changed to fbi
  • red changed to gre
  • fly changed to dfl
  • had changed to yha

In short the ehole protein will have wrong sequence of amino acid and it is worst type of mutation that badly effects an organism.

Hope it help!

4 0
3 years ago
What cells produce hydrochloride acid
Yuki888 [10]

Answer:

The parietal cell

Explanation:

8 0
3 years ago
Read 2 more answers
How does recycling help oceans?
Serhud [2]

So the marine animals don't eat the plastics that could be recycled and used for other products other than killing marine creatures.

7 0
4 years ago
Please help. I will mark you as brainliest and give you points :)
inessss [21]

Answer:

A hummingbird feeding: Mutualism

Explain Interaction: The hummingbird drinks the nectar from the flower and the hummingbird may help pollinate the flower.

I'm a bit confused by the plants on the floor one.

Plants on a Forest Floor: Competition

Explain Interaction: The plants on the forests floor compete with each other for the same resources. Both may not receive enough of those resources. Note: When I was around Middle School and High-school I was only taught mutualism, commensalism, and parasitism, so let me know if competition is not a choice your teacher gives you to choose from or wasn't taught to you

Flea bites human: Parasitism

Explain Interaction: The flea drinks the persons blood as food and the person is hurt. Flea bites can be itchy and become painful. Fleas may also also carry disease.

Clownfish in Anemone: Mutualism (although I hear some people say commensalism)

Explain Interaction: The anemone provides protection and a place to live for the clownfish. The anemone may eat bits of food left over from the clownfish.

7 0
3 years ago
How is the protein created from the mRNA sequence which reads AUGAUAGUGUAC different from the protein created from one that read
Scorpion4ik [409]

C option is the right answer which states teat the first has one more amino acid than the second.

Explanation:

The first mRNA sequence codes for the Methionine (start codon), isoleucine, valine, and tyrosine.

The second mRNA sequence for the Methionine, isoleucine, valine only, because the last sequence (UAG) is of stop codon and stop codon do not code for any of the amino acids.

3 0
4 years ago
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