Answer: The Leber's hereditary optic neuropathy (LHON) is caused by defective genes contained in mitochondrial DNA.
Explanation:
LHON is causes the vision loss. This occurs due to mutation in the mitochondrial DNA. The symptoms are not associated vision loss thus it is difficult to predict that which member of family was the carrier of the disease. Some people do not get completely blind. A young male is expected to develop a risk of 50% development of this disease.
What determines how much energy a human can receive from food?
A. How much oxygen the food contains
B. How much nitrogen the food contains
C. How much energy the food molecules have
D. How much the food molecules weigh
A disruption in the soil cycle results in increased runoff into the ocean.
O True
False
How does the presence of permafrost affect tundra plant life?
A. It prevents all roots from growing, so only lichens can grow.
B. It provides moisture for roots to grow deep, allowing many types of plant life.
c. It only allows shallow root growth, so large plants cannot grow as they normally would.
D. It leaches minerals from the top layer of soil, preventing most plants from growing.
Answer: C
It only allows shallow root growth, so large plants cannot grow as they normally would.
How is DNA recovered from hair?
Answer:
A simple method to extract DNA from hair shafts was developed by using enzymatic laundry powder at the first step of the process. The whole extraction can be finished in less than 2 hours. The simple extraction reagent proposed here contains only two cheap components: ordinary enzymatic laundry powder and PCR buffer
Explanation:
Which of the following provides the best justification for the contention that Archaea are more closely related to Eukaryota than they are to Bacteria?
O Multicellular organisms are found in both Archaea and Eukaryota but not in Bacteria.
O Cell membranes with ester-linked fatty acids are found in both Archaea and Eukaryota but not in Bacteria.
The composition of cell walls is similar in Archaea and Eukaryota but not in Bacteria.
The single-celled prokaryotic cells of Archaea and Eukaryota are visually similar, but Bacteria is not.
3. What atoms are parts of the process of photosynthesis?
Answer
Photosynthesis involves three elements: carbon, hydrogen, and oxygen. You have seen that the products of photosynthesis are oxygen and glucose. Their chemical formulas are shown below.
Answer:
carbon, hydrogen, and oxygen
Explanation:
how are genes chromosomes and heredity related to one another?
Answer:
These two copies of the gene contained in your chromosomes influence the way your cells work. The two alleles in a gene pair are inherited, one from each parent. Alleles interact with each other in different ways. These are called inheritance patterns.
Explanation:
sorry if this is wrong bc i know you need a good answer but i hope this helps!
Question 1 of 50
Which of the following choices is an example of a variable cost?
fabric used to sew the dresses a company sells
O the cost of renting a factory
money paid to replace a broken computer screen
Need asap !
When comparing two ecosystems, the one with a larger amount of
biodiversity is likely to have
A. less precipitation
B. more extinctions
C. more stability
D. fewer disturbances
Answer:
B :))
Explanation:
Answer:
more stability
Explanation:
At the complete end of cellular repiration, how many molecules of ATP are produced? A. 15 B. 34 C. 38 D. 26
C.38
Answer:
C.38
Explanation:
During aerobic cellular respiration, one molecule of glucose is broken down in the presence of oxygen to produce approximately 38 molecules of ATP. Light energy is converted into chemical energy in the process of photostnthesis- the resulting carbohydrate moecule incorporates linorganic carbon, and water to produce oxygen and glucose.
ATP or adenosine trohosphate is a high energy molecule, used as a type of energy currency in cells. In respiration, glucose is converted to pyruvate- this molecule's derivatives are then oxidized and reduced to harvest energy as ATP.
C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
glucose+ oxygen → carbon dioxide+ water+ energy
The letters that make-up the genetic code for a trait
O a. genotype
O b. trait
O c. heterozygous
O d. phenotype
which vocabulary goes with which letter
Answer:
its blurry
Explanation:
Answer:
e goes next to e and c does next to b
Explanation:
cause u have too look wiselty4 A reaction that needs water,
macromolecules are broken down
( biochemistry )
Answer:
Hydrolysis
Explanation:
Hydrolysis is a reaction that needs water to breakdown macromolecules into simpler units.
Macromolecules are giant polymers made up of several repeating monomeric units.
These units are too complex for the body to digest and derive nutritional benefits from them. During hydrolysis, the complex is broken down into monomers. The monomeric units are absorbable and useful for the body.5
The type of cell division in which each daughter cell receives the same number of
chromosomes the parent cell had is
(1 Point)
a mitosis
b. melos
c. spermatogenesis
d. oogenes
What most likely happens when a plate under the ocean is forced beneath another plate?
Seafloor splits open creating a large trench.
Seafloor spreading moves plates away.
New land is formed from hot molten rocks.
The top plate is uplifted and may create a tsunami.
Answer:
A. Seafloor splits open creating a large trench
Explanation:
I hope this helps
Answer:
it is D/ Location A, because the lighter oceanic plate will be pushed under the continental plate
Explanation:
Describe the two major types of smooth muscle
A molecule _____..........
In photosynthesis, the energy from the sun eventually gets converted into chemical energy in the form of ATP and sugar that the plant can use directly to fuel its biological processes. Which of the following correctly describes how plants use glucose after it is produced?
Answers:
Glucose enters the mitochondria for production of ATP.
Solar energy breaks apart glucose forming pyruvate.
The energy in glucose is never used by the plant.
Glucose is broken down into its components ATP and H ions.
Answer:
Glucose enters the mitochondria for production of ATP.
Explanation:
Photosynthesis is the process through which solar energy is used to make glucose.
To generate chemical energy for cellular processes, glucose is broken down through cellular respiration in the mitochondria. This generates large amounts of ATP, which acts a source of energy to power reactions in the cell.
Excess glucose is stored as starch in plant cells
How does cellular respiration happen?
Answer:
Explanation:
Hello there! Cellular respiration is the process in which the body breaks down sugar, glucose, within the body. When this glucose is broken down it will be transformed into ATP, Adenosine triphosphate, the energy used within almost all bodily processes. Although the means by which the body breaks down this sugar is rather complex it would be easiest to understand the chemical reactions that make up the process.
one of the many chemical reactions in cellular respiration is as follows:
C6H12O6+6O2⟶6CO2+6H2O+Energy
In the reaction above we see a sugar, C6H12O6, reacting with carbon dioxide. When these two products completely react they will produce water, H2O, carbon dioxide, CO2, and ATP, labeled as energy.
Hope this helps!
-HM
Fill in box 3.
(This is about DNA Replication)
Answer:
accdcecccehis
Explanation:
What are the symptoms of anorexia?
Answer:
A low body mass index for one's age and height.
Amenorrhea, a symptom that occurs after prolonged weight loss; causing menstruation to stop, hair to become brittle, and skin to become yellow and unhealthy.
Fear of even the slightest weight gain; taking all precautionary measures to avoid weight gain or becoming "overweight".
Rapid, continuous weight loss.
Lanugo: soft, fine hair growing over the face and body.
An obsession with counting calories and monitoring fat contents of food.
Preoccupation with food, recipes, or cooking; may cook elaborate dinners for others, but not eat the food themselves or consume a very small portion.
Food restrictions despite being underweight or at a healthy weight.
Food rituals, such as cutting food into tiny pieces, refusing to eat around others and hiding or discarding of food.
Purging: May use laxatives, diet pills, ipecac syrup, or water pills to flush food out of their system after eating or may engage in self-induced vomiting though this is a more common symptom of bulimia.
Excessive exercise including micro-exercising, for example making small persistent movements of fingers or toes.
Perception of self as overweight, in contradiction to an underweight reality.
Intolerance to cold and frequent complaints of being cold; body temperature may lower (hypothermia) in an effort to conserve energy due to malnutrition.
Hypotension or orthostatic hypotension.
Bradycardia or tachycardia.
Depression, anxiety disorders and insomnia.
Solitude: may avoid friends and family and become more withdrawn and secretive.
Abdominal distension.
Halitosis (from vomiting or starvation-induced ketosis).
Dry hair and skin, as well as hair thinning.
Chronic fatigue.
Rapid mood swings.
Having feet discoloration causing an orange appearance.
Having severe muscle tension, aches and pains.
Evidence/habits of self harming or self-loathing.
Admiration of thinner people.
Infertility.
Explanation:
Answer:
Explanation:
Extreme weight loss
Thin appearance
Abnormal blood counts
Fatigue
Insomnia
Dizziness or fainting
Bluish discoloration of the fingers
Hair that thins, breaks or falls out
Soft, downy hair covering the body
Amenorrhea (absence of menstruation)
Constipation
Dry or yellowish skin
Intolerance of cold
Irregular heart rhythms
Low blood pressure
Dehydration
Osteoporosis
Swelling of arms or legs
What produces sperm and eggs?
A. spores
B. an adult moss plant
A certain wastewater treatment plant uses aerobic bacteria, anaerobic bacteria and archaebacteria during secondary treatment of sewage. Unfortunately, during a bad bluzard the sludge digester froze, killing the microbes inside. What is likely to result? a) Floc levels will diminish b) Solid material will not be effectively fitered out c) Methane production will go down d) Floc will not be effectivelyftered out
Answer:
The correct option is C
Explanation:
Anaerobic bacteria used in sewage treatment helps to reduce the volume/amount of sludge in the sewage thereby producing methane gas from it. Some companies produce there own (not for sale) methane gas (as an alternate source of energy) through this process. Thus, a decrease in the amount of this bacteria (perhaps through death as described in the question) will lead to a decreased production of methane gas.
Which of the following cell organelles helps to transport large extracellular molecules into the cell?
a. Vesicles
b. Lysosome
c. Ribosome
d. Mitochondria
Answer:
A. Vesicles
Explanation:
One of the reasons that participants in experiments are not told what the
researcher is testing is because the participants might act differently if they
knew. When this happens it is known as the:
Answer:
Placebo Effect
Explanation:
Answer:
hawthorne effect
Explanation:
What experiment conducted by andre jagendorf with isolated thylakoid membranes proved that possibles solutions?A. Blue and red light, but not green, caused photosynthetic production of oxygenB. The ATP synthase complex functioned as a molecular rotary engineC. Molecular oxygen (O2) is derived from water, not CO2D. ATP and NADPH are the direct products of the light reactions, not sugar.E. ATP synthesis could be energized by a proton gradient.
Answer:
The correct answer is option E, that is, synthesis of ATP could be mediated by a proton gradient.
Explanation:
Andre Jagendorf inserted chloroplasts for many hours within a buffer of pH 4 and then instantaneously mixed that with the buffer of pH 8. He came to known that in the stroma, a change in pH was witnessed, that is, it moved to 8 while in the thylakoid space there was no change, that is, the pH remained at 4. He then isolated the thylakoid and put it in the dark, he noticed that it produced ATP. This proves the hypothesis of Peter Mitchell that the production of ATP is mediated by proton-motive force.
How can scientists use owl pellets to study the skeletal systems of small mammals in a specific ecosystem
Answer:
They use them so that they can see what type of organisms live there.
Explanation:
Which of the following adaptations is characteristic of plants in the taiga biome?
A) low growing
B) perennial
C) waxy needles
D) survive on limited nutrients
What would this be ???
Answer:
I would say cell membrane
- The electrons in the outermost ring that are used to determine reactivity are called
Answer:
Valence Electrons