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3 years ago

Gel electrophoresis separates dna fragments on the basis of differences in their ______. a:c ratio

1 answer:

7 0

The answer is length.

A gel electrophoresis is used for separation of DNA or its fragments on the basis of differences in their length. An electric current is running through the gel with positive pole on the bottom. Because of the difference in the lengths of DNA fragments, some <span>of them </span>will travel more quickly than other. It is expected to see smaller DNA fragments at the bottom of the gel and larger DNA fragments near to the top of the gel.

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When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited.

lys-0071 [83]

<h2>Answer:</h2>

a. one allele from each parent

<h2>Explanation:</h2>

An allele in biological sciences is one of the possible forms of a gene that it can inherit. Most genes have two alleles, a dominant allele and a recessive allele. When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited an allele for tallness from the tall parent and an allele for shortness from the short parent.

7 0

3 years ago

Read 2 more answers

HELP ME OUT PLEASE!

natka813 [3]

omg... that's really hard and i don't know what the answer is.

Explanation:

by the way, thanks for points

5 0

2 years ago

How much 3M NaOH (MW=40) can be made from 10.0mL of a 10M solution?

vaieri [72.5K]

Explanation:

The given data is as follows.

$M_{1}$ = 3 M, $V_{1}$ = ?

$M_{2}$ = 10 M, $V_{2}$ = 10.0 ml

Therefore, calculate the volume of given solution as follows.

$M_{1} \times V_{1}$ = $M_{2} \times V_{2}$

Now, putting the given values into the above formula as follows.

$M_{1} \times V_{1}$ = $M_{2} \times V_{2}$

$3 M \times V_{1}$ = $10 M \times 10.0 ml$

$V_{1}$ = 33.3 ml

or, = 0.033 L (as 1 ml = 0.001 L)

Since, molarity of NaOH is given as 3 M and its volume is calculated as 33.3 ml.

Molarity = $\frac{\text{mass of solute}}{\text{molar mass of solute}} \times \frac{1}{\text{volume in L}}$

3 M = $\frac{mass}{40 g/mol \times 0.033 L}$

mass = 3.96 g

Therefore, we can conclude that mass of NaOH is 3.96 g.

8 0

3 years ago

Desity can often be used to help determin the identity for a substance

sp2606 [1]

Density can be useful in identifying substances. It is also a convenient property because it provides a link (or conversion factor) between the mass and the volume of a substance. Mass and volume are extensive (or extrinsic) properties of matter - they depend on amount.

7 0

3 years ago

Transpiration is the evaporation process used by plants for cooling and to regulate the amount of water within its body. Factors

Stella [2.4K]

Answer:

Transpiration is the process of water movement in the plant in which water is released from the leaves to the environment in the form of vapours.

The transpiration is important to the plant as:

1. Cooling Effect: Transpiration help lower down the temperature of the plant by evaporating water.

2. The ascent of Sap: leads to the uptake of water in the plant.

3. Removal of Excess Water: removes extra water from the plant.

4. Maintain turgidity: helps maintain turgidity which leads to maintains shape and structure.

5. Photosynthesis: supplies water for the photosynthesis.

The process also has disadvantages to the plants as:

1. Wilting: the excess loss of water causes wilting of leaves during noon.

2. Reduced Yield: the wilting reduces the formation of fruits, flowers and seeds.

3. Wastage of Energy: Loss of water leads to the waste of energy which is used in the conduction of water and absorption.

The climate change has changed the ability of the plants to undergo transpiration and plants has adapted to maintain equilibrium by producing hair, thorns, thick cuticle, sunken stomata, cladodes and phylloclades.

3 0

3 years ago