All categories

3 years ago

What does it mean if there are two different alleles for a trait?

Biology

1 answer:

Anettt [7]3 years ago

5 0

Answer:

An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene. An organism which has two different alleles of the gene is called heterozygous.

You might be interested in

Cells Writing Prompt #1

Andreyy89

Answer:

popcorn kernels aren't living things

Explanation:

characteristics they have that show proof they are living organisms:

• movement when exposed to heat

• irritability/sensitivity since they react to change of temperature

• growth since when they are exposed to high temperatures they grow and become bigger

We can determine if they are living or not by:

• seeing if they respire

• seeing if they need nourishment

• seeing if they can excrete

• seeing if they can reproduce

In conclusion they aren't living things

8 0

3 years ago

What do echinoderms have instead of brains?

Ludmilka [50]

Answer:

Instead of a brain, echinoderms have a ring of nerves located around their mouth area that governs their nervous responses. This ring coordinates their motion, their eating, basically anything that requires nerve control.

Explanation:

3 0

3 years ago

Sumulat ng payak na tula na naghahambing sa tao at sa isang bagay

user100 [1]

Answer:

Explanation:

6 0

3 years ago

During winter in the Northern Hemisphere, A. the Sun rises earlier and sets later than during other seasons. B. the Sun appears

Marizza181 [45]

B. the Sun appears lower in the sky than during other seasons.

D. the Sun rises in the Northeast and sets in the Northwest.

On the northern hemisphere the north is to the left, the Sun rises in the east (far arrow), culminates in the south (to the right) while moving to the right and sets in the west (near arrow). Both rise and set positions are displaced towards the north in summer, and towards the south for the winter track.

Read more on Brainly.in - https://brainly.in/question/3188406#readmore

3 0

3 years ago

Read 2 more answers

Question 1 (3 points)

SVETLANKA909090 [29]

Answer:

1. Electrons

2. thru the circuit from the negative power terminal to the positive power terminal

3. Current

4. Voltage

5. resistance

6. Amps

7. Volts

8. Ohms

9. The voltage is decreased by the electrical resistance.

10. It doesn't work. The electricity can't go backwards thru an LED.

11. The current will decrease.

12. 0.75 amps

13. The current increase

14. an inverse relationship

Explanation:

1. Electrons are what move through a circuit. These electrons are called mobile electrons. Unlike protons and neutrons, they are not confined in the nucleus and are free to move about.

2. Electrons tend to move towards the positive. When an electron moves to a stable atom,the atom would have too much electrons, making it negatively charged. This then would cause a chain reaction of passing on electrons to keep stable.

10.

3 to 8:

Collectively, the flow of electric current is dependent on four things: Voltage, current, resistance, and power.

Voltage is the like the driving force of current. It is the measure of the potential energy or electric potential difference between two points. The unit of voltage is volts, named after Alessandro Volta. You can think of volts as electrical pressure. The higher the voltage, the higher the pressure on the flow of charge.

Current is the "flow" of electrons. It could have another meaning though, in electronics, we refer to current as the volume of the flow of electrons. Current is measured in AMPERES or amps named after Andre M. Ampere. Current is a measure of rate, or the rate of the amount of electrons that flow through a certain point in a circuit, at a given time.

Resistance on the other hand is the opposing force. As electrons move along a circuit, there is bound to be friction. This friction opposes the movement of the electrons, which we call resistance. Resistance uses the unit ohms or the symbol Ω.

These three are all related. The flow of current is affected by how much voltage there is available or pressure available for the movement of the electrons, and at the same time, it is also affected to how much resistance there is in the circuit. And that is where Ohm's Law comes in.

9 and 11-14:

Ohm's Law describes the relationship between current, voltage and resistance. It can be summarized into this formula:

$V = IR \rightarrow\; I=\dfrac{V}{R}\rightarrow\;R=\dfrac{V}{I}$

Where:

V = voltage

I = Current

R = Resistance

9. When electricity is met with an electrical component, the resistance through that part of the circuit increases. However, the resistance does not change the potential difference between the two points, but rather, it changes the amount of current that flows through. This means that it does not affect the voltage.

11. But on the other hand, for this scenario, the resistance was increased from 10 Ohms to 15 Ohms. Current and resistance have an indirect relationship. This means that as one goes up, the other goes down. As the resistance increases, the less current is able to flow through and thus the current will decrease.

12. Using Ohm's Law we can solve this:

$I = \dfrac{V}{R}$

The following is our given:

V = 9 V

R = 12 Ω

We plug that in our formula:

$I = \dfrac{V}{R}\\\\I = \dfrac{9}{12} = \dfrac{3}{4} = 0.75A$

13. As mentioned earlier, current and resistance have an indirect relationship. So when you have this scenario where the resistance chages from 20 Ω to 12Ω, you see that there is a decrease in resistance. This means that more current can flow through this circuit. So this means that the current increases.

14. was already explained above.

Hope this helps even just a little bit! Good Luck!

4 0

3 years ago