Which of the following best describes how crossing over occurs during meiosis?

During prophase I, homologous chromosomes are lined up and pulled apart to opposite poles.
During prophase II, sister chromatids trade places with each other before metaphase begins.
During prophase I, segments of chromatids are exchanged between homologous chromosomes.
During prophase II, spindle fibers begin to form, attaching chromosomes together.

Answers

Answer 1

During prophase I, segments of chromatids are exchanged between homologous chromosomes.

What is crossing over?

Crossing over is the exchange of chromatid segments between homologous chromosome pairs during the early stages of meiotic division.

Crossing over occurs after the pairing of chromosomes to form tetrads at prophase I of meiosis I.

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Related Questions

When one organism is helped and has no effect on the other, the relationship is called __________.

Question 4 options:

competition


mutualism


commensalism


adaptation

Answers

Answer:

Commensalism

Explanation:

explain how helped you on the other relationship

how could gene therapy someday be used to treat genetic disorders

Answers

Answer:

To my knowledge, it already is being used to treat them

Explanation:

things such as lactose intolerance are already being treated like this, same with many more things.

Answer:

Gene therapy techniques allow doctors to treat a disorder by altering a person's genetic makeup instead of using drugs or surgery. The earliest method of gene therapy, often called gene transfer or gene addition, was developed to: Introduce a new gene into cells to help fight a disease.

Explanation:

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Describe how the sequence of nucleotides in mRNA codes for the amino acids of a protein. How can th
insertion or deletion of even one nucleotide in mRNA cause significant changes to the protein that
result?

Answers

Answer:

330

Explanation:

What two systems send messages in the body?

Answers

Answer: the nervous system and the endocrine system

Explanation:

HELP ME OUT PLS!!!!!!!!

4) Choose the correct answer

A) a Main sequence star in spectral class B

B) a Super Giant in Spectral Class K

C) a Main Sequence star in spectral class Kor M

D) a White Dwarf in spectral class B​

Answers

Answer:

Giant

Explanation:

See picture for explanation:

Charred meat can cause cancer.

Answers

Answer:

What? This is a statement, not a question. But the answer if this would be in question form is yes.

Explanation:

uhm yes u would be correct is this was a question i guess

When a nonsterile product is used in the preparation of a Category 2 CSP, O a) endotoxin testing must be performed. b) the assigned BUD is 10 days when refrigerated. Oc) sterility testing must be performed. d) the assigned BUD is four days at room temperature.

Answers

C) sterility testing must be performed

Which statement can best be supported by the picture of embryos

Answers

A

Explanation:
it’s the one that makes the most sense !

PLEASE HELP!!!

True or False? Sunspots are areas of the sun that are cool enough for a rocket to land on

Answers

The awnser is false, sunspots are concentrated areas of the sun(higher amount of heat)

Which of these is NOT one of the
macronutrients found in nearly all living
organisms?

A. Nitrogen

B. Hydrogen

C. Phosphorus

D. Silica

Answers

Answer:

C. Phosphorus

Explanation:

hope this helped :)

(science) please help almost due

Answers

Answer:

A. D.

Explanation:

Body too large is a fallacy, makes no logical sense obviously. Fossil would remain. which is the same case answer B is, as sediment changing to rock, obviously not going to 100% destroy fossil, sedimentary rock actually preserves fossils, quite nicely.

what is the use of biology in the laboratory?​

Answers

QUESTION:

what is the use of biology in the laboratory?

ANSWER:

room where biological studies, analyzes and experiments are carried out. Based on the Occupational Health and Safety Act (ArbSchG), Infection Protection Act (IfSG) and Home Work Act (HAG), the Biological Agents Ordinance (BioStoffV) applies.

What is the importance of biology laboratory?

Biological Science Laboratory Apparatus is essential for meeting our basic needs of food, clothing, shelter, health, energy, clean air, water and soil. Biological Science Laboratory Apparatus enrich the quality of life in numerous ways by providing new solutions to problems in health and materials and energy usage.

Meristem cells in plants are most similar to which type
of animal cells?

Answers

Answer: stem cells

Explanation: They divide to give rise to one daughter cell that continues to be meristematic and another that differentiates. Meristems fall into three categories: apical, lateral, and intercalary. Apical meristems occur at the growing shoot and root tips 

Answer:

Meristematic cells are similar to stem cells in animals.

Explanation:

So it is Stem cells

How does the type of data breach affect the actions?
Select 1 type of data breach and the course of action that should be taken.

Answers

Answer:

Data breaches hurt both individuals and organizations by compromising sensitive information. For the individual who is a victim of stolen data, this can often lead to headaches: changing passwords frequently, enacting credit freezes or identity monitoring, and so on.

Explanation:

where in the Human body is maxilla found​

Answers

Answer:

Upper Jaw

Explanation:

The maxilla bone forms the upper jaw

Hope this helps, good luck!

Which of the following is most important to cultivating food in order to sustain human growth?

A. Domesticating animals
B. Agriculture
C. Mining species
D. Manufacturing​

Answers

B. Agriculture
hope it helps

When a cell does not have enough oxygen to support cellular respiration, which of the following processes would occur?
anaerobic respiration
photosynthesis
aerobic respiration
krebs cycle

Answers

keeps cycle is the correct answer

6. Which of the following fundamental units does the Système International
not use?
A. kg
B. mL
C. in.
D. cm

Answers

Answer:

The answer is B, C, D

Explanation:

They use Kg in the Système International so that is not an option of choice.

-Hope this Helps!

-Justin:)

Answer:

B, C, and D

Explanation:

The Fundamental Units are :

mass = kilogram (kg)length = metre (m)temperature = Kelvin (K)amount of substance = mole (mol)luminous intensity = candela (Cd)electric current = Ampere (A)time = second (s)

Out of the given options, only A is a fundamental unit used by the Systeme Internationale.

Hence B, C, and D are the options necessary

The question and answer choices are in the picture. THIS EXAM IS BEING TIMED SO I NEED ANSWERS, NOT LINKS, ASAP!!

Answers

Answer:

30 units of energy will be available to primary predators.

Explanation:

Using 10 % law i.e at each step 10 % of energy is transferred to the next trophic level at the rest of either consumed or lost to environment..

so plants have = 3000 units

herbivores = 10% of 3000 = 10/100 × 3000

= 300 units

so primary predators will have = 10% of 300

= 10/100 × 300 = 30 units

When used in in situ hybridization, RNA probes are _____ to the sample's RNA.
a. Complementary b. Identical

c. Supplementary d. Similar

Answers

Answer:

A. Complementary

Explanation:

complementary to the sample's RNA

hope this helps

What happens when you drink to much salt water

Answers

Answer:

when you drink to much salt water you dehydrate quickly

Explanation:

Consuming very salty water, like the kind in the ocean, may introduce more salt to your body than it's capable of processing. Your body attempts to flush the excess by inducing urination, pushing your kidneys into overdrive. Because you must excrete more water than you consume to get rid of the extra salt, you may dehydrate quickly.

a change in the structure of DNA in the egg cell could result in a

Answers

Answer:

ExplanationA mutation is a change in a genetic sequence. Mutations include changes as small as the substitution of a single DNA building block, or nucleotide base,

David is in therapy for anger issues. He is in therapy with six other people, who discuss their anger issues with each other and a therapist who is also present. David and the others in therapy give each other feedback, as does the therapist. David is MOST likely participating in _____ therapy.

group
REBT
dialectical behavior
family

Answers

Given what we know and the information being described in the question, we can confirm that David is most likely participating in group therapy.

What is group therapy?

This is exactly as it sounds, a therapy session involving more than one person at a time. The idea behind this method of therapy is that it to allow the participants to feel identified with their troubles, and take inspiration from others as to how to deal with and better their behaviors.

Therefore, we can confirm that David is most likely participating in group therapy.

To learn more about group therapy:

https://brainly.com/question/10595984?referrer=searchResults

Which statement could be supported by the graph? The number of coyotes will decrease in response to an increase in the rabbit population. The number of hawks will decrease in response to a decrease in the mice population. The number of frogs will decrease in response to an increase in the fly population. The number of grasshoppers will increase in response to an increase in the bird population.

Answers

Answer:

The number of hawks will decrease in response to a decrease in the mice population.

Explanation:

I took the k12 test and got it correct

Which of the following involves making man-made products from natural resources?

A. Agriculture
B. Mining
C. Manufacturing
D. Urbanization​

Answers

I believe it’s B, hope this helps!!!

1. What foods help you gain
weight?

Answers

Protein, rice, red meat, nuts and nut butter, whole-grain breads, other starches, protein supplements.

Healthy weight gaining foods:

R e d m e a t s:

P o u l t r y:

O i l y  f i s h :

C h e e s e:

D r y Fo o d s:

W h o l e   e g g s

Unhealthy weight gaining foods (Eat it's with moderation):

Pizza

Fried foods

Burgers

Hot Dogs

(goes on)

Here you go.

Hope this helps!

b) Without insulin, what happens to the glucose transporter (GLUT 4) on the cell surface?

Answers

GLUT4 is a glucose transporter protein that is detained intracellularly without insulin in different vesicles that contain proteins such as aminopeptidase.

What is the GLUT4?

It is the skeletal muscle-specific glucose transporter, found mainly in insulin-sensitive tissues, such as muscle and adipocytes.

The lack of insulin affects the migration of Glut-4 towards the plasmatic membrane, being stopped intracellularly in different vesicles and therefore producing a decrease in the transport of glucose into the cell.

Therefore, we can conclude that GLUT4 is a glucose transporter protein that is detained intracellularly without insulin in different vesicles that contain proteins such as aminopeptidase.

Learn more about GLUT4 here: https://brainly.com/question/13154510

What is the role of a sensory receptors

Answers

Answer :A sensory receptor is a structure that reacts to a physical stimulus

Explanation: in the environment, whether internal or external. It is a sensory nerve ending that receives information and conducts a process of generating nerve impulses to be transmitted to the brain for interpretation and perception.

how does too much fishing in an area affect its ecosystem

Answers

It can change the size of fish remaining, as well as how they reproduce and the speed at which they mature. When too many fish are taken out of the ocean it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species like sea turtles and corals.

ONLY CORRECT ANSWER PLEASE. 93 POINTS AVAILABLE ONLY IF YOU ANSWER THIS CORRECTLY!!!

What is this structure? This structure's function is to transport, but I would like to know its exact name. This is a structure like muscle cell, red blood cell, or palisade mesophyll cell and not an organelle like chloroplasts or nucleus.

Answers

Answer:

it looks like a villi to me

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Find the area of the figure. Round your answer to the nearest hundredth, if necessary. Which of the following situations is an example of how poll taxes are an obstacle to voting rights?A.Voters are left out because they cannot prove their reading and writing skills.B.Voters cannot participate because others have voted in their names.C.Voters are disqualified because their knowledge of the Constitution is weak.D.Voters cannot participate because they cannot afford to vote. According to the book, the term used to describe the process whereby most news reporting, especially foreign coverage, judges other countries and cultures based on the basis of how they live up to or imitate American practices and values is: i need help with this 20 POINTS!!! PLEASE ANSWER Paige mixed 11 gallons of lemonade and poured it intoseven 6-quart jugs. How many cups of lemonade were leftover after she filled the jugs? What information do you get from taking inventory?A: How fast a certain product is sellingB: How much money was earnedC: Demographic data on customers please help, thank you if you do Are the police/military ever justified in shooting protesters? Under what circumstances? True or False: The Meiji Emperor wanted to modernize because the samurai were becoming too powerful. Holding all else constant, if people who are currently discouraged workers decide to start looking for jobs again, you will see: Group of answer choices a decrease the labor force participation rate. a decrease in the unemployment rate. an increase the unemployment rate. no effect on the unemployment rate. no effect on the labor force participation rate. Which statement about clothing and the perceptions of others is not verified by research?. if x+y= -10 and x=2 what is the value of x Why did the mexican cession result in renewed sectional tension SOMEONE PLS HELP THANK YOUDoes magnitude effect the strength of attraction more than distance?Or Does distance effect the strength of attraction more than magnitude? What is the sum of the geometric sequence 1, 3, 9, ... if there are 11 terms? (5 points) 29,524 55,987 87,381 88,573 Select the correct answer.Typically, adults look for friends who are: Which of the following was not true about the Silk Road in ancient China? The Silk Road was not technically a road. The entire Silk Road was controlled by China. The Silk Road included routes over both land and sea. Most travelers on the Silk Road traveled by camel. letter for upscaling park A store's change in total revenue over a 4-month period is $1240. What is the average change in revenue per month for that period?Answer Choices: $4960$310$310$4960