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lions [1.4K]
3 years ago
7

An______is an organized procedure to study something under controlled conditions.

Biology
1 answer:
kiruha [24]3 years ago
8 0

Answer:

experiment

Explanation:

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1. A mutation of a human gene blocks harmful viruses from infecting cells. How can the mutation be classified?
Yuri [45]

Answer:

It is a beneficial mutation.

Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA. Mutations can beneficial, neutral and harmful or deleterious. When change in the nucleotide sequence of DNA a mutation enhances the effectiveness of a protein or improves the protein function, it is said to be beneficial. When a mutation causes the synthesis of a protein which have the same amino acid as the original protein and performs the same function as the original protein, it is said to be silent or neutral. When a mutation results in the synthesis of a protein with an altered amino acid sequence and a nonfunctional protein, it is said to be harmful.

3 0
3 years ago
To best display the distribution of sex (male, female, other), we could use:
topjm [15]

Answer:

<em>i</em><em> </em><em>gu</em><em>ess</em><em> </em><em>it</em><em>'s</em><em> </em><em>gender</em>

<em>hop</em><em>e</em><em> this</em><em> helps</em>

6 0
3 years ago
What is the purpose of a conclusion?
ohaa [14]
It would be d. in your conclusion you want to state if your hypothesis was right or wrong and why.
8 0
3 years ago
When vesicles of the cardiac sarcoplasmic reticulum (CSR) are incubated with ATP Mg^2+ and Ca^2+, they take up Ca^2+ and reach a
abruzzese [7]

Answer

I added 4 and 5 as an attachment due to time constraint.

Explanation:

1. at a steady state ca2+ taken by vesicle = 40n/mol

enclosed volume of CSR = 5μ/mg

concentration of ca2+ in vesicle =

40*10⁻⁶/5x10⁻⁶

= 0.008

= 8x10⁻⁹mol/L

2. radius of circle =75nM

volume = 150nm

volume of vesicle = 4/3 x pi x r³

= 1.33 x 3.14 x (75x10⁻⁹)³

= 1.77 x 10⁻²¹

when we convert this we get

1.77x10⁻¹⁸L since 1m³ is equal to 100oL

surface area =4x3.14x(75x10⁻⁹)²

= 12.56x5.625⁻¹⁵

= 7.065x10⁻¹⁴m²

this is 7.065x10⁻¹⁰cm²

3. number of vesicle/CSR

= 5x10⁻⁶/1.77x10⁻¹⁸

= 2.824x10¹²

surface are = 2.824x10¹² x7.06x10⁻¹⁰

= 19.95x10²

8 0
3 years ago
What is letter A in the DNA model??
sergeinik [125]

Answer:

adenine (A), cytosine (C), guanine (G), and thymine (T),

Explanation:

8 0
2 years ago
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