within a forest ecosystem, there is a large amount of diversity among members of a warbler species. of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers?
Answers
Crossing over occurs between homologous chromosomes, and is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.
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There are different mechanisms involved in producing genetic variation among descendants. These are,
Crossing-over between homologous chromosomes (prophase 1), Random lining of homologous chromosomes (metaphase 1),Random fertilizationThe Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.
The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.
After crossing over, homologous chromosomes get separated again.
In the attached imaged there are four different stages of meiosis.
Stage C is the one that contributes the most to diversity.
We can see that crossing over has already occurred between homologous chromosomes, and they have already interchanged segments.
In the image you will see the difference between chromosomes that has gone through the crossing over mechanism, and chromosomes that has not. The difference in color represents segments interchange and variation.
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Related Questions
nerve fibers from the medial aspect of each eye ________.
Answers
the kidneys can permanently remove substances that affect ph balance by secreting them into the ____________ .
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A patient with advanced kidney disease is likely to be suffering from azotemia, which is an unusually high blood urea nitrogen (BUN) level.
A disease that results in an increase in the breakdown of muscle tissue would result in an increase in the presence of ammonia in the blood, which the liver would convert to urea and would then be excreted in the urine.
What does an alcoholic beverage contain that is a central nervous system depressant? 
Answers
Answer:
interferes with release of neural transmitter GABA
Explanation:
Alcohol is a central nervous system depressant, meaning it slows down brain functioning and neural activity. Alcohol does this by enhancing the effects of the neural transmitter GABA
depressants essentially "look" like the neural transmitter and so they go in and block the plasce in the brain between synapses, so when the body tries to release GABA, it appears as if it is already filled in, but in reality it is the alcohol that has filled it. once they start buidling up, they block enough that it impairs brain activity
Answer:
GABA
Explanation:
gamma-aminobutyric acid (GABA)
3. Describe each one of the following types of fractures:
simple fracture
compound fracture
incomplete fracture
impact fracture
comminuted fracture
Answers
Compound: when the bone punctures the skin
Incomplete: the bone does not break completely
Impact: The bone fracture impacts another bone
Comminuted: The bone breaks into 3 or more pieces
Environmental science can include which of the following disciplines?
Political Science
Chemistry
Ethics
Botany
Answers
Answer:
I'd say Chemistry! Hope this helps! :)
Explanation:
Environmental science can include which of the following disciplines Botany.
What is environmental science?"The term environmental science refers to a grouping of scientific disciplines that are all concerned with the physical, chemical and biological characteristics of the surroundings in which organisms live."
What is botany?"Botany, branch of biology that deals with the study of plants, including their structure, properties, and biochemical processes."
What are the principles of environmental science?Four basic principles of environmental science are put forward in this paper:
systematic principle of environment,principle of environmental capacity,symbiosis principle of human between environment,entropy principle.To know more about environmental science here https://brainly.com/question/4593618
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In what phase do mosses spend most of their life cycle?
Answers
Answer: The familiar, green, photosynthetic moss plants are gametophytes. The sporophyte generation is very small and dependent on the gametophyte plant.
What is the function of the organelles that are labeled F? plant cell
Answers
Answer:
endoplasmic reticulum ( ER)
Explanation:
edg im guessing
What is the first indication of a Tsunami?
Answers
Answer:
Ground shaking or loud ocean roar
help taking final will give the breian thing
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what is your question? i cant download it
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In your own words, describe the base-pairing rules in any DNA molecule.
Answers
Answer:
adenine pairs with thymine
cytosine pairs with guanine
Explanation:
What flower has an ugly bud but a beautiful blossom?
Answers
Explanation:
Caladiums are tropical to sub-tropical plants grown mainly for their exquisite, colorful leaves. These foliage plants occasionally have a surprise up their metaphorical sleeve. Blooming on caladium plants isn’t common, but tubers planted in favorable locations tend to produce small flowers. These inflorescences aren’t as impactful as a rose or dahlia but have their own charm and, sometimes, a strong pleasant scent. There are several schools of thought on what to do with caladium flowers. While some growers believe pinching them off helps force energy to the tubers, others leave the small blooms with no ill effect on the plant.
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Temperature is vital for successful beer and wine making.why is it so important ?
Answers
Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
What is the role of bacteria in the formation of beer?In the formation of beer bacteria plays a vital role as they totally perform a function and due to this there is a change in the taste and concentration of the beer.Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
The process by which wine has been prepared is known as fermentation and ethanol has a colourless liquid which catches fire easily and it has been produced by the process of the natural fermentation of the sugars or alcohol. Ethanol has been also known as the alcohol which has colourless and slightly toxic chemical compound and the ethanol forms water as well as carbon dioxide.
Therefore, Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
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What is the role of ATP in transport of materials
Answers
Answer:
Functions of ATP in cells
Explanation:
ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell. The hydrolysis of ATP provides the required energy for active transport mechanisms to carry such molecules across a concentration gradient.
Answer:
The role of ATP in the transport of materials :- To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.Explanation:
Hope this helps you !!Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?
Answers
Answer: in the ovaries of female, and the testes of male animals!!
Explanation:
Outline what has to occur in the body for a reflex and a voluntary action to occur.
Answers
Answer:
For involuntary actions (reflexes) the information is first detected in the sensor and travels along sensory neurons to the spinal cord. Once the action potential reaches the spinal cord, the information is transmitted across the synapse to the motor neuron. for voluntary actions,
movements are commanded by the motor cortex, the zone of the cerebrum located behind the frontal lobe. The motor cortex sends a neural message that moves through the brain stem along the spinal cord and into the neural network to the muscle being commanded.
Why do organisms perform fermentation? in short and simple plsss
Answers
Answer: Because muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration.
Use what you have observed to explain what occurs during a dehydration synthesis reaction.
Answers
In a dehydration synthesis reaction (Figure), the hydrogen of one monomer combines with the hydroxyl group of another monomer, releasing a molecule of water. At the same time, the monomers share electrons and form covalent bonds. As additional monomers join, this chain of repeating monomers forms a polymer.
what stops the harmful "solar wind" from hitting the Earth?
Answers
Earth has a strong magnetic field. This deflects the charged particles and protects Earth.
Hope this helps :)
I could really use some help so pls be my guest
Answers
Answer:
B.
Explanation:
Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Answer:
I already said it is 2 number!!!
What is not a type of arrythmia?
ventricular flutter
atrial flutter
atrial fibrillation
ventricular tachycardia
Answers
Given what we know about anatomy, we can confirm that atrial flutter is the option listed that may not be considered an arrhythmia.
What is an arrhythmia?An arrhythmia is classified as an irregular beating of the heart. What this means is that the heart will beat at rhythms different from the normal. A normal heartbeat can increase or decrease in speed, but as long as the beating follows a regular rhythm it is not considered an arrhythmiaThe atrial flutter can cause the heart to beat much faster than normal but maintains a regularity.Therefore, since the atrial flutter causes the heart to beat very fast, but maintains a regularity to it, we can confirm that this is not a type of arrhythmia given that an arrhythmia is classified as an irregular beating of the heart.
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many protists are single-celled organisms. which other characteristic is common to organisms in kingdom protista?
Answers
the larynx, trachea, bronchi, and bronchioles all make up the
Answers
Answer:
Lower Respiratory Tract
Explanation:
The lower respiratory tract or lower airway is derived from the developing foregut and consists of the trachea, bronchi (primary, secondary and tertiary), bronchioles (including terminal and respiratory), and lungs (including alveoli). It also sometimes includes the larynx, which we have done here. This is where gas exchange actually takes place.
7. Identify the part of the human digestive system.
a) Site where digestion begin:
b) Site of final digestion:
c) Peristalsis:
d) Absorption of digested food:
e) Absorption of water:
Answers
Answer:
d
Explanation:
absorption of digested food
Site of final digestion
2. A sugar, a phosphate group, and a nitrogen base form the building blocks of which macromolecule?
a) Carbohydrates
b) Lipids
c) Nucleic Acids
d) Proteins
Answers
Answer:
c) Nucleic acids
Explanation:
Because DNA has those components
in the family the father is affected by a genetic disorder the son in the family has the same disease but the daughters do not have it. what type of inheritance is this ?
Answers
Answer:
Explanation:When a genetic disorder is diagnosed in a family, family members often want to know the likelihood that they or their children will develop the condition. This can be difficult to predict in some cases because many factors influence a person's chances of developing a genetic condition. One important factor is how the condition is inherited.
What did one volcano say to the other?=
What animal is always at a baseball game?=
Answers
A bat
Are the answers
Suppose you were interested in the effect of breastfeeding versus formula feeding on the composition of gut flora in newborns. As part of your experiment, stool samples from healthy babies in the study get plated on various agar media. You notice that greater numbers of colonies are recovered when samples are plated on blood agar compared to nutrient agar (NA). After some diligent subculturing, you isolate several bacterial species capable of slow growth on the blood but not on the NA. You correctly surmise that these organisms: ______________
a. are opportunistic blood pathogens.
b. have extensive and complex nutritional requirements not met by NA are inhibited by the ingredients in NA.
c. should be classified as beta-hemolytic.
d. grow because the blood agar suppresses the growth of faster-growing bacteria.
Answers
Answer:
vAurora
Explanation:
1. There are 200 bones in the human body. 2. The skeleton is the structural arrangement of bones in the human body. 3. A bones are of the same shape. 4. Bones give shape to the body. 5. The backbones or spinal column are attached to the skull. the statements below.
Answers
Answer:
Salmat po
Explanation:
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We eat food for energy. What is the source of energy for this food chain?
A) the sun
B) the grass
C) decomposers
D) all the animals
Answers
It provides energy for the plants, the plants provide energy for the animals, and the animals provide energy for the decomposers
The first fuel Paul’s body uses is ________________________ from Paul’s last meal, which are stored in his _____________ & his ______________ (technically the bits in his BLOOD are used up before that even). The body turns them into ____________, which is burned in ____________. That fuel lasts Paul about ________________.
Answers
1. The first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal.
2. These carbohydrates are stored in his liver and muscles (technically, the bits in his blood are used up before that even).
3. The body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration.
4. That fuel lasts Paul about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).
A fuel can be defined as the resources that power the body of a living organism such as a human being. Also, the three (3) main types of fuel that power the human body include the following:
OxygenWaterFoodFat is a nutritional element of food and it is beneficial to the body of a living organism because after the body exhausts its carbohydrates, it then uses its own fat as a fuel to power the body.
In this context, the first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal. These carbohydrates are stored in his liver and muscles (technically, the bits of carbohydrates in his blood are used up before the storage).
Furthermore, the body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration. Also, the fuel would only last Paul for a distance of about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).
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