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3 years ago

In a cross of two heterozygous parents, 25% of the offspring should have the recessive phenotype.

Biology

1 answer:

Degger [83]3 years ago

7 0

True because if you were to do a punnet square, it would show 25% recessive 25% dominate and 75% hybrid

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Calculate the actual size of the organelle (A to B). Show all your workings in microns (um). <br>

fredd [130]

To measure the diameter of a organelle with a scale line of 1 µm.

Measure the length of the scale line on the micrograph in mm, e.g. 1 µm = 17mm.
Measure the diameter of the organelle in millimetres, e.g. = 60mm.
True diameter of organelle.

<h3>How do you find the actual size of an organelle?</h3>

To calculate the actual size of a magnified specimen, the equation is simply Mixed6 :

Actual = Image size (with ruler) ÷ Magnification.

Thus, this is how we can measure the size of an organelle.

To learn more about organelle click here:

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2 years ago

Coral reefs are structures in the ocean composed of the hard exoskeletons of many species of coral. They reproduce simultaneousl

Katarina [22]

I think gamete incompatibility.

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3 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

The mineral that is a coenzyme involved in energy metabolism and assists in the synthesis of bone tissue and cartilage is

Galina-37 [17]

Calcium

Calcium helps build and maintain bones.

4 0

3 years ago

Can someone help me with this question? Thank you!!

babymother [125]

Answer:18 kcal

Explanation:

Law of ecological pyramid - the production of organisms of each subsequent trophic level is always on average up to 10 times less than the production of the previous one

1800/10=180

180/10=18

6 0

2 years ago

Read 2 more answers