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3 years ago

while working in the lab,you drop an empty flash on the floor and it breaks. what is the appropriate action to take

Biology

2 answers:

ladessa [460]3 years ago

6 0

Answer:

clean it up

Explanation:

cause if someone isn't looking where they're going and they trip on something then fall in the glass

JulsSmile [24]3 years ago

4 0

Answer: Inform professor. Turn off hotplate or anything you are using. Glove up. Pick up big pieces of glass discard it in the proper container (broken glass container). Sweep up smaller remaining pieces and discard them in the broken glass container as well.

Explanation:

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What is the volume of a sphere with a radius of 9 units?

RideAnS [48]

4/3*22/7*729=21384/7

7 0

2 years ago

Read 2 more answers

Parent 1

Nitella [24]

The Punnett square is a valuable tool, but it's not ideal for every genetics problem. For instance, suppose you were asked to calculate the frequency of the recessive class not for an Aa x Aa cross, not for an AaBb x AaBb cross, but for an AaBbCcDdEe x AaBbCcDdEe cross. If you wanted to solve that question using a Punnett square, you could do it – but you'd need to complete a Punnett square with 1024 boxes. Probably not what you want to draw during an exam, or any other time, if you can help it!

The five-gene problem above becomes less intimidating once you realize that a Punnett square is just a visual way of representing probability calculations. Although it’s a great tool when you’re working with one or two genes, it can become slow and cumbersome as the number goes up. At some point, it becomes quicker (and less error-prone) to simply do the probability calculations by themselves, without the visual representation of a clunky Punnett square. In all cases, the calculations and the square provide the same information, but by having both tools in your belt, you can be prepared to handle a wider range of problems in a more efficient way.

In this article, we’ll review some probability basics, including how to calculate the probability of two independent events both occurring (event X and event Y) or the probability of either of two mutually exclusive events occurring (event X or event Y). We’ll then see how these calculations can be applied to genetics problems, and, in particular, how they can help you solve problems involving relatively large numbers of genes.

3 0

2 years ago

A 2 column by 2 row table. Column 1 is titled Planet with the following entries: A, B. Column 2 is titled Length of a Day in hou

bagirrra123 [75]

Answer:

The planet A is inner planet and B is the outer planet.

Explanation:

Because A shows 16 hr. per day revolution. and B shows maximum hours. hence A is inner and Bis outer planet.

6 0

2 years ago

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1.If a DNA molecule has 40% Cytosine, what percent of it would be Adenine?

andrey2020 [161]

Answer:

The correct answer is -

1. Adenine - 10%

2. A-T and C-G always in DNA.

Explanation:

1. The total amount of all nitrogenous bases are equally 100% and which includes an equal amount of C and G and an equal amount of A and T in the DNA molecule.

So, Cytosine = 40%, Guanine= 40%

total = 80%

therefore, the A and thymine would be - 100 - 80 = 20

A+T = 20

A= 10, and, T = 10%

2. The complementary base pairing rule explains that DNA base pairs are Adenine always binds with thymine and cytosine bind with guanine only. Purine binds with pyrimidine always except - A-C or G- T.

7 0

2 years ago

Isovolumetric relaxation and ventricular filling (two phases of the cardiac cycle) take place during __________. Isovolumetric r

Helga [31]

Answer:

Option B, ventricular diastole

Explanation:

Ventricular diastole also termed as ventricular relaxation consists of two phases. In the first phase, the following set of events takes place –

a) Relaxation of ventricle muscles

b) Reduction in pressure of blood within the ventricles

c) As this reduced blood pressure gets lower than that of pressure with in the pulmonary trunk and aorta, blood starts flowing back towards the heart.

d) A small dip in the blood pressure is observed at this stage

e) Volume at this stage remains constant as the atrioventricular valves remain closed

f) This phase is known as isovolumic ventricular relaxation phase

In the second phase, the following set of events takes place –

a) Relaxation of ventricular muscle

b) Dropping of pressure of the blood within the ventricles lower than that of pressure of blood in the atria

c) Blood starts flowing from atria into the ventricles thereby opening the tricuspid and mitral valves

d) Both the heart chambers chambers are in diastole,

e) Atrioventricular valves are open

f) Semilunar valves remain closed

Hence, option B is correct

3 0

3 years ago