Crossing over is a process during which chromosomal segments are exchanged between a pair of sister chromatids. True or false I have an exammm

Answers

Answer 1

Answer:

FALSE

Explanation:

An exchange of chromosome segments between non-sister homologous chromatids occurs is called crossing over.


Related Questions

A population with a growth rate equal to
zero is
A. stable
B. gaining members
C. increasing in size
D. decreasing in size

Answers

A. Stable because it is not growing nor decreasing

A man has Huntington's disease (a dominant trait) and a heterozygous genotype. He has four children with a woman who does not have Huntington's disease. What are the odds their children will inherit Huntington's disease?

Answers

Answer:

50/50

Explanation:

Water that reaches the ground and moves horizontally towards rivers, streams, and lakes is called runoff.

A. True

B. False

Answers

Answer:

A. True

Explanation:

flow off a hill slope directly to a stream in the form of runoff, or it may flows downward through the unsaturated zone to reach the water table. The area at the stream or lake to which the groundwater is flowing. Recall that water is flowing in pores where there is friction, which means it takes work to move the water.

Examples of Biotic factors include
A) grass, flowers, and sunlight
B) grass, trees, bees, and ants
C) Grass, trees, soul, and water.
D) All of the above

Answers

the term biotic stands for living things. considering the definition, i’d say the answer is b.
B) grass, trees, bees, and ants

is this karyotype from a male or female? how do you know ?
Also do they have down syndrome? How?

Answers

Answer:

Its a male, without down syndrome

Explanation:

The fact that it's a male is indicated from the presence of the Y chromosome. In order for this man to have down syndrome, he would have had 3 chromosomes at 21, which he doesnt, meaning he doesnt have down.

What is a type of cell that makes new bone tissue?
A. Osteoblast
B. Myosin
C. Actin
D. Cartilage

Answers

Answer:

I think the answer is going to be A. I'm not completly sure.

Explanation:

A doctor examines a patient who has high blood pressure and atherosclerosis in the coronary artery. What medical condition connected to blood flow is most likely to affect this patient in the future?

A. The patient may develop headaches and confusion due to cancer in the brain caused by years of low levels of oxygen supplied to the brain.

B. The patient may develop stiff joints and chest pains from the high blood pressure applied to the muscle and joint tissues of the body.

C. The patient may show signs of confusion, weakness, and partial paralysis due to high blood pressure when the plaque dislodges and blocks blood flow to the brain.

D. The patient may suffer a heart attack because of the reduction in blood flow to the muscles due to severe plaque build-up in the coronary artery.

Explain why this is the correct answer and why the other ones are wrong:

Answers

The patient may suffer a heart attack because of the reduction in blood flow to the heart muscles due to severe plaque build-up in the coronary artery.

What are some potential solutions to the problems Pavan identifies?

Answers

Answer:

below

Explanation:

Waste disposal; We need to recognize the benefits of nature and start preserving nature.

If some bacteria are resistant to tetracycline and some are not resistant, what happens when a patient is given tetracycline for an infection?

Answers

Answer:

Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult, and sometimes impossible, to treat.

Explanation:

hope this helps:)

If two parents have type O blood, what are the possible blood types of their children?

Answers

Answer:

O

Explanation:

It would be type O, because both parents have type O. Whether it was positive (+) or negative (-) would depend on both parents.

Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine which traits evolved through mutations. They compare the genes inherited by a species to determine descendants. They compare the number of mutations to determine how long ago species separated and evolved.

Answers

Answer: They compare the number of mutations to determine how long ago species separated and evolved.

You're welcome!

Answer:

C.They compare the number of mutations to determine how long ago species separated and evolved.

Explanation:

this is correct

An individual who exhibits a mixture of schizophrenic symptoms most likely has undifferentiated schizophrenia. Please select the best answer from the choices provided OT OF​

Answers

Answer:

True

Explanation:

An individual who exhibits a mixture of schizophrenic symptoms most likely has undifferentiated schizophrenia.

The most likely diagnosis for someone who displays a variety of schizophrenic symptoms is undifferentiated schizophrenia. The aforementioned is therefore True.

What is schizophrenia?

The illness that impairs a person's capacity for clear thinking, feeling, and behaviour is schizophrenia. Although the precise origin of schizophrenia is unknown, it is thought that a mix of genetics, environment, and changes in brain chemistry and organization may be at play.

Schizophrenia is characterized as disorganised speech or behaviour, depressed participation in daily tasks, and ideas or experiences that appear disconnected from reality. Memory loss and attention problems could also be present.

Therapy is typically ongoing and frequently consists of a mix of prescription drugs, psychotherapy, and well-coordinated specialty care services.

So, the given statement is True.

Learn more about Schizophrenia, here:

https://brainly.com/question/8611812

#SPJ7

Explain why ecologists think the focus of conservation efforts should be ecosystems, not individual species?

Answers

It depends on the species and its primary threats, there is no universal solution. Many South East Asian species are primarily threatened by poaching ("Empty forest syndrome"), whereas many "reptiles" and amphibians from Madagascar can apparently cope with fairly high levels of collection (e.g. Golden Mantella [Mantella aurantiaca]), while the loss of their often small habitat is the primary threat.

1. Which of these physical trait(s) did
scientists claim were connected to
certain behavioral trait(s)?

Answers

Answer:

It turns out that the body color and wing length genes are linked, which means they are located very close to each other on the same chromosome. In addition, if two genes are linked in this way, then gametes are more likely to contain specific allele combinations.

Explanation:

please mark this answer as brainliest

If you know the answer please help me!!

Answers

Answer:

- During development similar species show similar structures. These may include tails or gills. The presence of these structures provides evidence for common ancestry.

Explanation:

I Hope this Helps :)

How are the DNA strands organized

Answers

Answer:

They are all composed of building blocks called nucleotides that are linked together in a row. its two complementary strands are chemically linked together and are spiraling around counterclockwise, forming a ladder-like double-stranded molecule.

Explanation:

What would happen if there is an obstruction in the vas deferens?​

Answers

A transfer of sperm to a female

mushroom can only be found in dark places . why ?

Answers

Answer:

advantage of growing mushrooms in the dark is that darkness preserves the moisture that mushrooms spores need to reproduc

Which of the following types of plastic is almost never recycled?
A- take-out food containers
B- milk jugs
C- shampoo bottles
D- soda bottles

Answers

take-out food containers

a. Draw a food chain that could exist in your ecosystem.
b. Draw a large arrow to show how the energy flows through your food chain

Answers

Answer:

Explanation:

This is an example

A. The following food chain in a simple terrestrial ecosystem:

Grass → Grasshopper → Frog → Snake → Hawk

B. The energy flow will be directed as follows:

grasshopper (primary consumer) frog (secondary consumer) snake (tertiary consumer) hawk (quaternary consumer)

Food Chain:

Consider the following food chain in a simple terrestrial ecosystem:

Grass → Grasshopper → Frog → Snake → Hawk

In this food chain, the grasshopper is the major producer, the frog is the secondary consumer, the snake is the tertiary consumer, and the hawk is the quaternary consumer.

B. Flow of Energy:

The giant arrow representing the flow of energy through the food chain would start with grasses and progress through each trophic level. Energy moves along the food chain in a way that passes from one organism to another when it is consumed.

The energy flow will be directed as follows:

grasshopper (primary consumer) frog (secondary consumer) snake (tertiary consumer) hawk (quaternary consumer)

The arrows indicate that the sun's energy is taken up by the grass through photosynthesis and then transferred to each successive level when the organism consumes it.

Learn more about Food chain, here:

https://brainly.com/question/26022932

#SPJ4

Which of the following explains the unusual events happening all
over the Serengeti?
A
illegal hunting
B
disease from humans
starvation
D
mysterious illness

Answers

Answer:

d

Explanation:

i got it right

Unrelated or distantly related species may come to resemble each other due to what

Answers

Answer is similar environmental factors

Please help.................

Answers

Answer:

C i think.......................................

Which of the following statements about coral reefs is TRUE?
O Coral reefs are generally less than ten years old.
o Coral reefs contain a great diversity of life and species.
O Coral reefs cover most of the world's ocean floor.
O Coral reefs contain very few species other than fish.

Answers

Answer:

The correct answer is "Coral reefs contain a great diversity of life and species." as while they cover 1% of the ocean floor, they are homes to more than 25% of marine life.

Explanation:

The following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.

What is the importance of coral reefs to the ecosystem?

The coral reef is a type of structure that forms large, interconnected structures, creating a habitat for a wide range of other species, such as fish, crustaceans, and mollusks, and the reef provides shelter and food for a diverse array of organisms. Coral reefs generally occur in warm waters along the coasts of tropical and subtropical areas, so climate change harms them.

Hence, the following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.

Learn more about the coral reefs here.

https://brainly.com/question/15794949

#SPJ6

state and explain components of blood​

Answers

Answer:

It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including transporting oxygen and nutrients to the lungs and tissues

Explanation:

Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.

energy is stored during photosynthesis. true or false

Answers

True because plant needs them

In regards to the Central Dogma... Select one: a. Transcription involves RNA polymerase which is recruited to origins of replication by transcription factors b. Eukaryotic mature messenger RNA, exported from the nucleus to cytoplasm, has been spliced and modified at the 5' and 3' end. c. The 5' cap is a modified cytosine nucleotide and the 3' polyA tail is comprised of 50-250 alanine residues. The purpose is to stabilize the mRNA. d. The mature messenger RNA is translated by the ribosome in the cytoplasm. The ribosome reads the mRNA in a 5' -->3' direction while synthesizing protein in a N-->C direction e. multiple of the options are true

Answers

Answer:e. multiple of the options are true

Explanation:

DNA central dogman involves DNA replication, DNA transcription and DNA translation which involves the formation of protein.

Replicated DNA are transcribed to an intermediary mRNA(Messenger ribonucleic acid) from where it is moved from the nucleus to ribosome in the cytoplasm. Enzyme RNA polymerase helps in proof reading ,replication and transcription of bases during transcription. translation takes place in the ribosome with the help of ribosome in the presence of enzyme tRNA (transferase ribonucleic acid) that reads the codon and brings corresponding amino acid which are functional protein.

Which statement below is true about seasons in coniferous forests?
A) Summers are long, hot and dry.
B) Summers are warm, and many plants are able to grow and bloom.
C) Winters are long, dark, and very cold.
D) Cold winter temperatures cause all plants in the forest to wither and die.

Answers

Answer:

the answer is a

Explanation:

summers in coniferous forests from June, July, and August are the most humid months and the temperatures are at their highest  

Please Help brainiest for correctt and first answer

Answers

Answer:

B: to break down sugar and release...

Explanation:

Mitochondria is the powerhouse of the cell! It breaks down sugar that comes into the cell and releases it back into the cell as energy

Someone please help me !

Answers

Answer:

A

Explanation:

A becouse planets do move and the sun move around eachother.
Other Questions
JAVAWrite a method that takes 2 parameters: an ArrayList list, and an int numRepeats representing the number of times to repeat each element in the array.Return a new ArrayList with each element repeated numRepeats times.For example, if we had an ArrayList list with the values ["hello", "world"]:repeatElements(list, 3)Should return a new ArrayList with the elements:["hello", "hello", "hello", "world", "world", "world"]public ArrayList repeatElements(ArrayList list, int numRepeats){} Which sentence uses a passive form of the verb justify?A )Trevon's mother justified her son's actions by referring to his morals.B )Celia felt justified in missing class to help someone in need.C ) Kevin had justified his misconduct with half-truths.D ) Samantha's lack of civility was justified by Willem's rudeness. ose baked 36 cookies. He wants to share them equally among 16 people. How many cookies will each person get?Draw a line segment to connect the two whole numbers that the answer lies between. An ice cream shop uses mix of blueberries and cherries on its ice cream sundaes. The shop has 5 3/4 pounds ofblueberries and4 1/2 of cherries. The shop mixes the blueberries and cherries and uses 1/16 pound of the mix on each sundae. Whichexpression represents the total number of sundaes that the shop can make using all of the blueberries and cherries?A:(5 3/4 1/16) + 4 1/2B:5 3/4 + (4 1/2 1/16)C: 1/16 (5 3/4 + 4 1/2)D: (5 3/4 + 4 1/2) 1/16 if the school officials want to save money and dont mind spending a large amount of time maintaining the bins, they should install How was the removal of the Japanese similar to that of the Cherokee? How was it different (1) Four-day school weeks will be better for students health. (2) One article says Some students feel the four-day school week provides an opportunity for extra rest and a less stressful environment. Being out of school one extra day per week allows students to relax or to be more productive. (3) This shows how four-day school weeks would be better. (4) Students are super stressed out all the time because they have so much to do every single day. (5) A four-day school week would be good because it would give everyone an extra day to chill out and have fun or get a job or volunteer which would be good so thats why. (6) Also, students who are less stressed out would do better in school anyway so doing stuff to make them less stressed is the best idea. (7) Thats just one of the reasons we should have a four-day school week. Put the number or numbers for each part of the body paragraph checklist. Point = what sentence Evidence = what sentence Citation = what sentence Analysis = what sentence Leave a kudos and a suggestion for improvement. Kudos = Suggestion = someone help me please lol thx Find the area of this circle. Use 3 for .A = 7r210 ft[?] ft2PLEASE HELP Which conic section is shown in the image?A. circleB. ellipseC. parabolaD. hyperbola Answer pleaseeeeeeeeeeeeeee pretty please In the diagram, x is a negative number and y is a positive number. Select the expression that is a positive. Answer choices:x(y) x - yy/xy - x A currency is a system of money created and used by an individual or a group of people. all people who live in the same era. a nation or region of the world. a town, city, or state within a region. EMERGENCY!!!! Each hour, every person who knows a rumor tells two other people. If one person starts the rumor, then after the first hour, three people know the rumor. The next hour, those three people each tell two more people. After eight hours, how many people will know the rumor? You do not have to include units in your answer. (I've asked this question before but the answers I got were 384 and 64 and they were both wrong) where do American progress comes from? Help please!! Louisa wants to find out whether earthworms prefer to live in the dark or in the light. She constructs an investigation. She fills a box with dirt and places 30 earthworms in the dirt. Then, she covers half of the box with a lid. She leaves the other half open. After waiting a week, what should Louisa do next? No links!!!A. repeat the experimentB. write a report to present to her science classC. ask another question about the behavior of earthwormsD. count the number of earthworms that are present on each side of the box will make the brainly help the table shows conversion between minutes and seconds how many seconds should go with 2.5 minutes Polygon ABCDE has a vertex at A(-4, 2). If the polygon is translated 4 units right and 2 units up, what are the coordinates of A'? Driving Your brother and sister took turns driving on a 635-mile trip that took 11 hours to complete. Your brother drove at a constant speed of 60 miles per hour and your sister drove at a constant speed of 55 miles per hour. Let x be the number of miles your brother drove and let y be the number of miles your sister drove. Solve the linear system x + y = 11 and 60x + 55y = 635 to find the number of miles each of your siblings drove. Show your work.