When does crossing over occur?
A. Before Meiosis
B. Meiosis 2
C. Meiosis 1
D. After Meiosis

Answers

Answer 1

Answer:

C. Meiosis 1

Explanation:

Because then there are double chromosomes this stage only duplicates in diploid cells.

Meiosis 2 duplicate cells in to haploid cells (only gametes)


Related Questions


Explain what is meant by the term differentiate.

Answers

The process by which cell types or cell populations attain distinct and different forms and functions is called differentiation.

This is the process that allows the stem cells to differentiate and form a cell type that will perform a specific function.

The process of differentiation is essential for the formation of the different organs in multicellular organisms.

Telling variation between two terms

Which of these has not been used as an RNA probe?

a. Fluorescence probes
b. Radioactive probes

c. Non- radioactive
d. Cellular probes​

Answers

Answer:

I think the answer is Cellular Probes.

Explanation:

I hope this helps! Correct me if I am wrong.

Where are chromosomes located during metaphase?

Answers

The mitotic spindle pulls the chromosomes together at the metaphase plate. Microtubules from opposite spindle poles grab the two sister chromatids of each chromosome. In metaphase, the spindle has collected all the chromosomes and lined them up at the middle of the cell, ready to divide.

What are chromosomes?

Chromosomes are the greatest level of DNA and protein organization. Chromosomes' primary job is to transport DNA and genetic information from parents to offspring. During cell division, chromosomes play a vital role. They keep DNA from becoming twisted or damaged.

The metaphase plate is a plane or region that is about equidistant from a dividing cell's two poles.

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can you please answer it I need it now.​

Answers

Temperature is not a weather instrument. This is because it is considered under the abiotic factor. Thus, the correct option is B.

What is a Weather instrument?

A weather instrument may be defined as any appliance or device that measures weather-related conditions of a particular location at a given time.

Anemometer is used to measure wind speed and wind pressure. The thermometer is an instrument that measures the air temperature. Temperature refers to the hotness or coldness of the air. Weather is the condition of the atmosphere at any given time and place.

Therefore, the correct answer to each question is mentioned above.

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Hormones are chemicals made in the soil that affect parts of plants.
a. True
b. False

Answers

Hormones are chemicals made in the soil that affect parts of plants. The statement is false.

How are gibberellins able to affect other parts of the plant?

Gibberellins stimulate the growth of shoots which increase the biomass and vegetative growth of plants. If vegetative growth increases, the root biomass is also increases.

So we can conclude that other parts of the plant are also affected due to gibberellin because it stimulates the growth of shoots which is the upper portion of the plant.

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Some flowers have both male and female parts. With itself as the only parent, one of these flowers can still create offspring, this process is called ____

Answers

Answer is Self pollination

Reason
There is self pollination where the plant pollinates itself (like corn) and cross pollination (apple tree) where another plant is required to pollinate.

Scientific research about how disruptions of the carbon and nitrogen cycles
affect people will be least valuable if the results:
O A. are confirmed by peer review but are rejected by the public.
B. are inconclusive but might possibly be true.
O
C. help us slow the growth of Earth's human population.
O
D. help us prevent a continued rise in Earth's sea level.

Answers

The disruption of the carbon and nitrogen cycles affecting people will be least valuable if the results are inconclusive but might possibly be true. Thus, the correct option is B.

What is the Carbon cycle?

The carbon cycle may be defined as the movement of carbon and its derivatives through various biotic and abiotic components of an ecosystem.

The effect of disruption of nutrient cycles will be the least practical and useful if the outcome of it is not conclusive with respect to the deterioration of an ecosystem but might be conceivably true.

It impacts scientific research to a larger extent and allows it to affect the disruption of nutrient cycles in an ecosystem in a significant way.

Therefore, the correct option for this question is B.

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TLloyd’s lab partner is looking down into a test tube while he heats the contents by using a flame. Which action should Lloyd recommend to his partner if heating must continue?
Wear safety goggles while looking into the opening of the test tube.
Cover the opening of the test tube so that no materials can boil out of it.
Move the test tube so that the opening is pointing away from all students.
Put the test tube in a hot water bath so that no water can enter its opening.

Answers

The action that should be recommended by Lloyd to his partner if the heating must continue is to move the test tube so that the opening is pointing away from all students. Thus, the correct option is C.

What are the precautions that should be taken while heating the solution?

Safety and security are the foremost things that you should be required to keep in mind when performing lab experiments. You should be well aware of all its parameters.

While heating the solution, always keep away your face away from the direct opening of the test tubes, wear goggles if required, etc.

Therefore, the action that should be recommended by Lloyd to his partner if the heating must continue is to move the test tube so that the opening is pointing away from all students. Thus, the correct option is C.

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question is in the photo

Answers

Answer:

third optiOn! :)

Explanation:

Answer: Third option !!

What is a convection current

Answers

Answer:

Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air, or molten rock. The heat transfer function of convection currents drives the earth's ocean currents, atmospheric weather, and geology.

Explanation:

The lock-and-key mechanism refers to
O the complementary shapes of an enzyme and a substrate.
O the attractive forces between an enzyme and a substrate.
© the ability of an enzyme to lower the activation energy of a reaction.
O the ability of an enzyme to
*unlock" the products of a reaction.

Answers

Answer:

I think the answer is A.  the complementary shapes of an enzyme and a substrate.

Explanation:

I hope this helps! Correct me if I am wrong.

Personal boats and watercraft do not contribute to ocean pollution. t/f

Answers

Answer and Explanation:

FALSE

Personal boats and watercraft DO contribute to ocean pollution.

Most water vehicles need fuel to be powered and go through the water. This fuel can sometimes go into the water, polluting the surrounding area.

Watercraft that don't use fuel, but instead are man-powered, can still contribute to ocean pollution. People can bring items such as soda cans, beer bottles, fishing equipment, etc., and any of these items tend to be discarded into the water, leading to pollution and degradation of the ecosystem, harming any wildlife that lives there.

I hope this helps!
#teamtrees #PAW (Plant And Water)

Which of these is not a process that can cause speciation?

A. Seasonal migration

B. Asexual reproduction

C. Mate selection

D. Genetic damage

Answers

Answer:

Asexual reproduction

Explanation:

Answer:

es la b

Explanation:

reproducción asexual

Question 4 of 10
How do bacteria develop resistance to drugs?
10 Points
A. After a certain amount of the bacteria are killed by drugs, they learn to recognize and avoid it.
B. Their ability to replicate very fast and natural mutations combine to allow them to evolve rapidly.
OC. If they only absorb a small amount, it works like a vaccine, immunizing them against larger amounts.
OD. If you do not take all of your antibiotics, they slowly develop a tolerance for it, like you would against certain toxins over time.
Reset Selection

Answers

Answer:

A is your correct answer.

Answer:

A

Explanation:

a population is composed of individuals of ___

Answers

Answer:

A) the same species that live in a particular area

organisms swimming on the surface of water are

Answers

Answer:

.

Explanation:

organism swimming on surface of water are plankton

Answer:

plankton

Explanation:

they are plankton

HELP PLEASE FOR BRAINLIEST AND THANKS!!!!!!!

In radishes, red and white are the pure-breeding colors and long and round are the pure-breeding shapes, while the hybrids (heterozygotes) are purple and oval. The cross of a red oval with a purple oval will produce all but which of the following shapes?

a. red and oval
b. white and long
c. purple and oval.
d. red and long
e. purple and long

Answers

B , d and e. I believe that is correct

What is a land breeze?

Answers

Answer:

is a breeze blowing towards the sea from the land, especially night owing to a relative warmth

of a sea.

I believe it helps you

Answer:

a breeze blowing towards the sea from the land, especially at night, owing to the relative warmth of the sea.

Explanation:

Which of these best describes a hormone?

A. A chain of amino acids secreted by a gland

B. A neurotransmitter with a specific target

C. A neurotransmitter carried in the blood

D. A chemical message secreted by a gland

Answers

Answer:

option D

A chemical message secreted by a gland.

Explaination: A hormone is a chemical that is made by specialist cells, usually within an endocrine gland, and it is released into the bloodstream to send a message to another part of the body. It is often referred to as a 'chemical messenger'.

whats is the law of pascal​

Answers

In simple terms, the law of pascal is any force applied to a confined fluid is transmitted uniformly in all directions throughout the fluid regardless of the shape of the container.

Why does the Department of Homeland Security target foot-and-mouth disease?

Answers

The bottom- and- mouth complaint contagion has been honored since at least the 16th century.

It's characterized by fever, pocks on the bases and mouth, loss of appetite, drooling and lameness. Infected herds of creatures are generally destroyed.

Large quantities of the contagion are present in all body concealment, including breath, and are readily transmitted to other creatures. The contagion can also survive on the ground for extended ages of time and can be transferred on tires, thrills and clothes. It has indeed been shown to be carried long distances by wind.

The United States has been free of the complaint since 1929, but that isn't a guarantee it'll not return. Britain was free of the complaint for 34 times before a 2001 outbreak that needed the destruction of 10 million cows.

FMD contagion is largely contagious in cloven- mashed creatures, including cattle, gormandizers, small ruminants. Encyclopedically, FMD has a significant impact on beast trade economics and expansive nonsupervisory programs live in the U.S. to grease identification of, response to, and control of the complaint. With one in nine Americans employed in the husbandry or confederated diligence, the goods of an FMD outbreak in the U.S. would be ruinous ­ – estimated at nearly$ 200 billion in lost profit over 10 times across affected diligence.

Therefore the Department of Homeland Security target foot-and-mouth disease.

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Question 14 of 25
Scientists are most likely to change a scientific theory if:
A. members of society do not agree with the theory.
B. the theory cannot be tested through direct observation.
C. new evidence does not support the theory.
D. a hypothesis used to test the theory is not supported.

Answers

Answer:

B. The theory cannot be tested through direct observation.

Explanation:

Frontal view of the lower leg

a) anterior view of the fibula
b)anterior view of the femur
c)distal view of the calcaneus
d)sagittal view of the tibia

Answers

The frontal view of the lower leg is the anterior view of the fibula. Thus, option "A" is correct.

What are Tibia and fibula?

Tibia and fibula are the two bones of the legs which form the lower bones of the leg. The tibia is the longer bone while the fibula is the shorter bone of the legs.

Many bones originate from this tibia and fibula like soleus originates at the posterior side of the fibula, peroneus longus originates at the superior of the fibula, and Tibialis anterior originates at the upper two-thirds of the tibia.

Thus, option "A" is correct.

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Read the excerpt from Jane Eyre by Charlotte Brontë.
from fan
My head still ached and bled with the blow and fall I
had received: no one had reproved John for wantonly
striking me; and because I had turned against him to
avert farther irrational violence, I was loaded with
general opprobrium [harsh criticism].
"Unjust!-unjust!" said my reason, forced by the
agonising stimulus into precocious though transitory
power.
What is revealed about Jane by the juxtaposition of
Jane's feelings with those of the rest of her household?
O She is upset when she is criticized.
O She is not affected by the way others treat her.
She has a strong sense of what is right.
O
O She has trouble seeing things from another point of
view.

Answers

It is revealed about Jane by the juxtaposition of Jane's feelings with those of the rest of her household She is upset when she is criticized. Thus, option "A" is correct.

How does the author compare with her heroine Jane Eyre?

The author Charlotte Brontë was able to reflect on her own life and circumstances in the character of Jane Eyre. One of the most important ones is that both women were orphans, as Charlotte lost her mother at five.

Afterwards, she lived in a boarding school that made her unhappy. Both characters were also left to care for others (Charlotte for her father and Jane for Mr Rochester) and they both worked as governesses. Moreover, both women were intelligent, educated, resourceful and ahead of their times. This is an example of how authors sometimes include details of their personal lives in their works.

Thus, option "A" is correct.

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Answer is (A.)

Explanation: just took quiz on edge 2023.

View attachment. Following his motorcycle accident, what type of memory was K.C. able to form?
A) only semantic memories
B) only episodic memories
C) declarative memories
D) procedural memories

Answers

I believe the answer is A) only semantic memories
I think the answer will be A

Why is it advantageous for a cell to be small

Answers

Because so it want cause much problems

Question 6 of 10
Which characteristic of water is most helpful to fish in a lake?
OA. Water molecules are polar.
OB. Two elements make
up the compound water.
OC. Water freezes at 0°C.
OD. Frozen water floats on liquid water.
SUBMIT

Answers

A characteristic of water which is most helpful to fish in a lake is that: B. two elements make up the compound water.

What is water?

Water refers to a liquid molecule that comprises two main chemical elements in the ratio of two to one (2:1). Also, these two chemical elements are:

HydrogenOxygen

In conclusion, a characteristic of water which is most helpful to fish in a lake is that two elements make up the compound water. Thus, a fish would be able to breathe in a lake due to the presence of oxygen in water.

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How did Galileo increase public support for Copernicus model

Answers

Publishing his work in Italian
Hdbshh no I def glass

any help? question in the photo.

Answers

Answer:

The lymphatic system is a combination of circurlatory and immune systems

Explanation:

yw :))

Which choice best summarizes the outcome of Redi‘s experiment?

Answers

Francesco Redi performed his experiment against the theory of spontaneous generation. In his experiment, he takes one glass jar and a piece of flesh and analyzes them in three different situations.

Why did Francesco Redi perform his glass jar experiment?

Francesco Redi performed his glass jar experiment in order to illustrate the evidence against the theory of spontaneous generation.

He demonstrate that dead maggots or flies would not generate new flies when positioned on rotting flesh in a sealed jar, whereas live maggots or flies would have the capability to grow some eggs of maggots.

This experiment discredited both the presence of some essential components in once-living organisms and the requirement of fresh air to induce living life.

The complete question is as follows:

Which choice best summarizes the outcome of Redi‘s experiment?

Evidence for the theory of spontaneous generation. Evidence against the theory of spontaneous generation. Evidence for the theory of special creation. Evidence for the theory of the origin of life.

Therefore, the correct option is B, i.e. Evidence against the theory of spontaneous generation.

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Other Questions
Let a and b be real numbers where a b 0. Which of the following functions could represent the graph below?1f(x) = x(x-a)(x - b)42f(x) = x(x - a)(x- b)3f(x) = x(x-a)(x- b)4f(x) = x(x-a)5(x- b) solve for x: 5x-4y=24 Kiara wrote an email with the subject, "Requested changes to the district academic calendar."What would be the best thing for Kiara to do next if she hopes to make a real difference?A) She should let her parents read her email so they can add in comments and ideas. B) She should submit her email to her superintendent so her request gets reviewed.C) She should send her email to her teacher so she can approve the changes. D) She should send her email to her classmates to read so they can discuss the issue. Alec paid the bill for dinner with his clients which totaled $140 before tax and tip. If an 8 percent sales tax was added to the cost of the meal, and an automatic tip was added in the amount of $25.00, what was the total cost of the dinner? Select the graph for the solution of the open sentence. Click until the correct graph appears.3|x| > 6 I would really appreciate the help!:) which one among the elements is a trace ? Personally, President Truman A. believed the atomic bomb should first be demonstrated to the Japanese before it was actually used to bomb Japanese cities. B. did not believe the atomic bomb would be enough to force the surrender of the Japanese. C. did not think the atomic bomb was necessary since an invasion of Japan was already planned and the Japanese had already sent out peace feelers. D. was unaware of the plan to build an atomic bomb until after he was sworn in as president. What is the relationship between velocity and speed PLS HELP QUICKLYf(x)= 3x + 4x - 6g(x) = 6x5x - 2Find (f+g)(x).A. (f+g)(x) = -6x +8x + 4x - 4B. (f+g)(x) = 6x - 2x + 4x-8c. (f+g)(x) = 6x + 3x-x-8D. (f+g)(x) = 9x-x-8 step by step please, thank you so much 4. It is disputed who actually struck the first gold in the Klondike. Whodo the Canadians claim struck gold on Rabbit Creek? Cost of 6 kg of rice is 540 what is the cost of 13 kg of rice. Which branch of the federal government gains more power during wartime? Which principle asserts that citizens, not politicians or government officials, hold ultimate authority? Which of these statements best describes transportation within cities in the early 1800s?O People moved from place to place quickly, but their transportation options were limited.O People moved from place to place quickly, and transportation was accessible to all.O People moved from place to place slowly, but transportation was easy to access.O People moved from place to place slowly, and their transportation options were limited. explain how magic numbers are related to nuclear stabilize Rearrange the equation 4-4x-2y=0 into the form of y=mx+c g A uniform meter stick has a 150 g rock suspended from the zero position and balances when a fulcrum is placed at the 25.0 cm position. What is the mass of the meter stick 1. Read the section in your textbook "Thinking about Traditions" on Ming andQing traditions. Answer the question at the end of the section Ratio of men to women working for a company is 7to5 there are 75 women working for the company what is total number of employees