Answer:
An XY chromosome will be a male chromosome pair.
An XX chromosomes will be a female chromosome pair.
Genomic imprinting may involve a single gene, a part of a chromosome, or a whole chromosome. Indicate if the following statements are true or false regarding this phenomenon
1. Genomic imprinting is permanent in the somatic cells of a given individual. _____________
2. Genomic imprinting is permanent and affects future generations. ____________
3. Methylation is the chemical change underlying genomic imprinting. _____________
4. If a gene is imprinted, the offspring can express both the maternal and paternal allele. _________
Answer:
1. True.
2. False.
3. True.
4. False.
Explanation:
A genome can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
Genome imprinting can be defined as an epigenetic biological process in which a genomic domain or genes of a living organism is marked biochemically with information that is related to parental origin. Thus, it is a non-Mendelian inheritance i.e genome imprinting is typically independent of Mendelian inheritance.
1. True: Genomic imprinting is permanent in the somatic cells of a given individual.
2. False: Genomic imprinting is permanent and affects future generations. It does not affect future generations because generally it is expressed in a parent of origin specific form.
3. True: Methylation is the chemical change underlying genomic imprinting.
4. False: If a gene is imprinted, the offspring can express both the maternal and paternal allele. It is independent of Mendelian inheritance.
I need help with this fossil record thing
Answer:
millions of thousands of species , most of which are evidence of all the fossil record
Explanation:
HOPE IT WILL HELP YOU
Compared to small cells, large cells have more trouble doing what
Answer:
As the cell grows, it faces some issues such as:
• Running out of the nutrients and requirement of growth factors.
• Running out of the space.
• Require appropriate gas exchange.
As compared to the smaller cells, larger cells have more issues in moving the required materials inside and excretory products outside. This is because the ratio of the surface is to volume is turning more and more unbalanced and takes much longer time for the cellular processes to take place.
Explanation:
Why bacteria generally dies in the presence of oxygen ?
Bacteria that require oxygen to grow are called "obligate aerobic bacteria". Without oxygen they generally die since these bacteria require oxygen to grow.
Their methods of energy production and respiration depend on the transfer of electrons to oxygen.
Simple organisms usually make exact copies of themselves when they reproduce. What do we call this type of reproduction?
Answer:
asexual reproduction.
What kind of mutation would occur if a sequence of DNA is changed from ATCGGCTTAACG to ATCGGCTAAACG?
Answer:
Base substitution mutation
Explanation:
Mutation is the alteration or change that occurs to the sequence of a gene caused by a mutagen (chemicals) or spontaneously-induced. Depending on how the mutation occurs, it is of different types. The mutation shown in this question is as follows:
ATCGGCTTAACG to ATCGGCTAAACG
This type of mutation is called SUBSTITUTION MUTATION. Substitution mutation is a type of mutation that involves the replacement of one or more nucleotide base by another. In this original sequence; ATCGGCTTAACG, the eight base T was replaced by base A in the sequence, hence, it is a substitution mutation.
the structure labeled A in the figure below is called the
Answer:
Centromere
Explanation:
Connects sister chromatids
The structure labelled A in the figure is a centromere.
What is a centromere?The centromere is a region of the chromosome that is constricted. The centromere plays an important role in the division of cells during both the processes of mitosis and meiosis.
The centromere is simply the region of the chromosome where the spindle fibres attach. Therefore, when the spindle fibres attach to the centromere, they pull the sister chromatics in the opposite directions of the cell during cell division.
Thus, at the end of the cell division, each of the daughter cells gets one-half of the chromosome containing identical DNA. The centromere is thought to be the middle region of the chromosome, even though it is often not in the middle. It is simply the region where the chromosomes are most constricted
The centromere separates the chromosome into the P arm and the Q arm. These are simply the names given to the short arm and the long arm of the human chromosome respectively.
Read more about centromere, here
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PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answer:
I believe the answer is A.
Explanation:
It wouldn't be B or C and I don't think D really has anything to do with biotechnological research.
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have a good day :))
compare and contrast nutrition in a guava plant and Rhizopus fungus
what is the name of these compound based on IUPAC nomenclature?
Explanation:
plz mark my answer as brainlist you find it useful.
hope this will be helpful to you.
Answer:
Required answer in the attachmentWhich event occurred during the Mesozoic era?
Cyanobacteria filled the water and air with oxygen.
Early humans began to make tools, harvest plants, and make cave paintings.
Pangaea began to break apart into many continents separated by shallow seas.
Pangaea, the super continent, was formed.
Answer:
Pangea began to break apart.
Explanation:
Humans wouldn't exist for millions more years. Pangea existed before the Mezoic, and the Cyanobacteria doesn't make sense. (Not an expert though.
Rattlesnake Species
100
Average Length (cm)
8 8 8 8 8 8 8 %
60
Mojave
Massasauga
Western
Diamondback
O
Black-tailed
1. Which type of information about rattlesnakes
does the bar graph above show? SCIL15.2
adaptation
evolution
mimicry
variation
I needdd helpppp plssss
Answer:
cool
Explanation:
this is easy I am not going to waist a lot of time but I will give you a cool video to watch in you tube
The gecko is a reptile that has the amazing ability to climb smooth surfaces - even glass. Recent discoveries indicate that geckos stick to smooth surfaces via van der Waals interactions between septae on their feet and the smooth surface. When not selling car insurance, geckos climb smooth surfaces.
a. How is this method of stickiness advantageous to the gecko over covalent interactions?
b. Given that van der Waals forces are among the weakest molecular interactions, how can the gecko's feet stick so effectively?
Answer:
a) This method of stickiness is advantageous over covalent interactions because it is weak and easily reversible.
b) The feet are equipped with millions of septae which collectively produce a synergistic effect that produces a powerful adhesive effect.
Explanation:
Geckos have their feet studded with tiny hair-like substances called septae, and these substances interact with the surfaces on which the Gecko climbs using weak van der Waals forces to produce stickiness.
a) The van der Waals interactions for the purpose of climbing is of more advantage over the covalent method of interaction because climbing involves a repetitive action of adhesion to the surface and destruction of such adhesion, and this involves the creation and the breaking of the bonds between the two surfaces easily. van der Waals forces being easily broken helps to achieve effective climbing. If the method of interaction is with a comparatively strong bond, the speed of creation and destruction of such bond is reduced, and the effectiveness of climbing is reduced.
b) Although van der Waals forces are weak forces, each foot of the wall Gecko has millions of septae that each create a van der Waals interaction, and the collective interactions produce a powerful adhesion causing the feet to stick effectively.
The article mentions the six rules for choosing effective supporting materials. Name the three you feel are the most important and explain why you feel this way. (Site 1)
Answer:
Don't have to many. I feel like this is one of the most important because if you go on to long about the same thing you will begin to lose your audience and the speech will not be as good anymore. Match the Material to the audience. This is another very important one because if the audience can relate to what you are saying they are going to be way more engaged in what you have to say. Make the purposeful. This is final and 3rd most important rule because what you are saying has to mean something or else what is the point in saying it at all.
Explanation:
Personally don't think this is that good of an essay but I got a 100% on it so it works.
The most important rules include the following;
Saying meaningful words.Matching the material with audience.Be short and concise to prevent ambiguity.What is an Audience?These are referred to as a group of listeners or spectators. It is best to convey information to them in the best possible way.
This is why the important rules which are mentioned above must be followed to prevent confusion.
Read more about Audience here https://brainly.com/question/26120710
What is an example of elastic potential energy?
a. stretching a rubber band
b. apple falling from a tree
c. A dog lying on the floor
d. throwing a ball
Answer:
a.stretching a rubber band
Answer:
An example of elastic potential energy is
A. stretching a rubber band.
Hope it will help :)
all life would come to an end if there are no green plants.
Explain
Answer:
So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.
Explanation:
The smallest unit that can carry on all the processes of life is a
The smallest unit that can carry on all the processes of life is a cell.
Answer:
Cell
Explanation:
Cell is the basic unit of life processes
My main goal is to produce ATP energy
Answer:
mitochondria is my name
Explanation:
Sickle-cell anemia is an inherited disease that affects red blood cells. In people who have this disease, one amino acid is substituted for another amino acid in a blood protein. What causes sickle-cell anemia?
A. Mutation
B. Replication
C. Translation
D. Transcription
A sound wave that occurs at a quick rate and has a high frequency would produce
A
a loud sound.
B
a low-pitched sound.
C
a high-pitched sound.
D
a soft sound.
Answer:
C. a high-pitched sound
Explanation:
why is the moon invisible from earth during a new moon science
Answer:
Explanation:
During the New Moon the far side of the Moon is illuminated by the Sun, while the side that faces the Earth lies in darkness so the Moon is invisible. As the Moon follows its path from the New Moon position more and more of the Earth-facing side becomes illuminated resulting in the “waxing” phases.
Low-carbohydrate diets became popular in the late 1990s and were quickly proclaimed to be a fast and easy method of weight loss. The effectiveness and safety of these diets are dependent on the activity and overall health of the individual as well as the total nutritional content of the diet. However, it is true that in some cases, these diets have been effective. What metabolic effects caused by eating a low-carbohydrate diet can be linked directly to a decrease in fatty acid synthesis and an increase in fatty acid oxidation?
a. release of insulin from pancreatic's cells
b. dephosphorylation of AMPK
c. release of glucagon from pancreatic's cells
d. phosphorylation of AMPK
Answer:
c. release of glucagon from pancreatic's cells
d. phosphorylation of AMPK
Explanation:
Low-carbohydrate diets (LCDs) stimulate the secretion of glucagon by a decrease in the blood glucose concentration. Glucagon is a key hormone secreted by pancreatic cells in the same way as insulin but in an opposite way. This hormone (glucagon) prevents glucose accumulation as hepatic glycogen, while insulin helps to the accumulation of glucose in the liver as glycogen, thereby acting to reduce hepatic glucose output. Moreover, the AMP-activated protein kinase (AMPK) is a kinase protein that mediates the phosphorylation and inhibition of acetyl-CoA carboxylase (ACC) in order to reduce the synthesis of malonyl-CoA, a key molecule that regulates myocardial fatty acid oxidation.
One of the first astronomers to use a telescope was Galileo. Using his telescope he discovered that Jupiter had four moons and each night, the four moons, seen as points of light, appeared to change positions slightly. This observation gave further evidence for what? All BUT ONE could apply.
Answer:
B. The planets vary in size and composition.
Explanation:
Galileo was an Italian scientist and he was the first person to use a telescope in the field of astronomy. Although, the first telescope was invented by Sir Isaac Newton.
A telescope can be defined as an optical instrument or device which comprises of a curved mirror and lenses used for viewing distant objects i.e objects that are very far away such as stars and other planetary bodies.
One of the first astronomers to use a telescope was Galileo. Using his telescope he discovered that Jupiter had four moons and each night, the four moons, seen as points of light, appeared to change positions slightly. Therefore, this observation gave further evidence that the planets vary in size and composition. The slight change in the position of the moon indicate that planetary bodies have a variation in size and matter (constituent elements) that make them up.
Answer:
b
Explanation:
Why is it important for others to believe in science
Answer:
because science is one of the most important channels of knowledge
Explanation:
because of science you can create a new knowledge, improving education, and increasing the quality of our lives.
I hope it can help.
What is the correct order of the cell organization after cellular differentiation
Answer:
The cell organization hierarchy consists of (in order): cells ⇒ tissues ⇒ organs ⇒ organ systems ⇒ organisms.
Explanation:
What are CD4 cells?
a. T-cells that have a CD4 receptor
b. B-cells that have a glycoprotein receptor
c. HIV antigens
d. red blood cells
Answer:
I'm pretty sure it is b because CD4 cells are the cells that are a glycoprotein
Explanation:
2. All living things are made of cells.
True
False
Answer:
true
Explanation:
WE ARE MADE OF CELLSSSSSSS AND EVERYTHING THAT IS LIVING DOES TOO
How is energy stored when ADP is converted to ATP?
Answer:
Energy is stored in the bonds between the phosphate groups (PO4-) of the ATP molecule. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released. When ADP and inorganic phosphate are joined to form ATP, energy is stored.
Explanation:
Hope this helped Mark BRAINLEST!!
Do alligators have complete 360 vision?
Answer:
yes
Explanation:
Question 2 of 10
Psychological perspectives exist:
O A. to address the physical properties of the brain.
B. to explain the science of behavior.
C. so that there can be different ways of looking at psychological
questions.
O D. to enforce one particular way of looking at problems.
Answer:The correct option is B.
to explain the science of behavior.
Explanation:
This is because psychology perspective is the study of the science of cognitive behavioral. It entails the behaviors of humans both conciously and unconsciously. This perspective deals with the properties of brain. It deals with human ways of thinking, mind and behavior. Therefore it is the science of human behaviors.