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3 years ago

What could be some weakness with using a test cross to determine Fred’s genotype?

Biology

1 answer:

Komok [63]3 years ago

6 0

Answer:

Test-cross is often used to determine the genotype of parent that is dominant as we cannot determine that the dominant parent is homozygous or heterozygous for the trait just be looking at it.

In a test-cross, the dominant trait organism will be crossed with a recessive type organism. The results will predict the genotype of the dominant parent.

Some of the drawbacks of the test cross are:

a) It might be difficult to find a recessive type of the particular trait.

b) The result prediction can take a lot of time. This is because enough offspring have to be developed to predict the result which will take time.

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The internal urethral sphincter is comprised of

Sauron [17]

Answer:

1) the internal urethral sphincter (IUS), which consists of smooth muscle and is continuous with the detrusor muscle and under involuntary control, and 2) the external urethral sphincter (EUS), which is made up of striated muscle and is under voluntary control.

Explanation:

Hope this helped!

7 0

2 years ago

A plastic bottle contains 32.5 L of gas at a pressure of 45.7 kPa and

Monica [59]

Answer:

Final pressure, P2 = 362.26 kPa

Explanation:

Given the following data;

Initial volume = 32.5 Liters

Initial pressure = 45.7 kPa

Final volume = 4.1 Liters

To find the final pressure, we would use Boyle's law;

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

$PV = K$

$P_{1}V_{1} = P_{2}V_{2}$

Substituting into the equation, we have;

$45.7 * 32.5 = P_{2} * 4.1$

$1485.25 = 4.1P_{2}$

$P_{2} = \frac {1485.25}{4.1}$

$P_{2} = 362.26$

Final pressure, P2 = 362.26 kPa

5 0

2 years ago

I need help with this fill in the blank!

sesenic [268]

So um can sum one make sure i’m write?

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2 years ago

Physiological studies indicate that damage to the area of the brain known as the _______ can disrupt behaviors that depend on wo

netineya [11]

Damage to the area of the brain called the prefrontal cortex can disrupt behaviors that depend on working memory. This area is located at the front of the frontal lobe. It is in charge of planning and helps with personality development.

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2 years ago

What is the function of a motor neuron?

Ber [7]

C. The brain sends messages to the spinal cord

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2 years ago