Answer: Explanation:
Sickle hemoglobin differs from normal hemoglobin by a single amino acid: valine replaces glutamate at position 6 on the surface of the beta chain. Therefore the red blood cell bends differently giving it a sickle shape
Answer:
Explanation:
Sickle cell disease is a group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body. People with this disease have atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle, or crescent, shape.
Signs and symptoms of sickle cell disease usually begin in early childhood. Characteristic features of this disorder include a low number of red blood cells (anemia), repeated infections, and periodic episodes of pain. The severity of symptoms varies from person to person. Some people have mild symptoms, while others are frequently hospitalized for more serious complications.
The signs and symptoms of sickle cell disease are caused by the sickling of red blood cells. When red blood cells sickle, they break down prematurely, which can lead to anemia. Anemia can cause shortness of breath, fatigue, and delayed growth and development in children. The rapid breakdown of red blood cells may also cause yellowing of the eyes and skin, which are signs of jaundice. Painful episodes can occur when sickled red blood cells, which are stiff and inflexible, get stuck in small blood vessels. These episodes deprive tissues and organs, such as the lungs, kidneys, spleen, and brain, of oxygen-rich blood and can lead to organ damage. A particularly serious complication of sickle cell disease is high blood pressure in the blood vessels that supply the lungs (pulmonary hypertension), which can lead to heart failure. Pulmonary hypertension occurs in about 10 percent of adults with sickle cell disease.
True or False.
A group of the same species of living things in an area is a population
Answer:
True.
Explanation:
A population is a group of organisms of the same species that live in the same area at the same time
Answer:
True!
Hope this helps.
The pedigree below is for a family that has the allele for thalassemia, a recessive genetic disorder. Which individual has thalassemia?
individual 2
individual 5
individual 7
individual 10
Answer:
Individual 10 is the answer
Explanation:
I just took the quiz on edge
Answer:
The answer is Individual 10, hope that helps.
Explanation
Because it is right on Edge
Give three reason why specialized systems are necessary in large multicellular organisms
Answer:
Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment
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Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment.
Which component of the endomembrane system is responsible for packaging and preparing exist proteins in vesticles?
Answer: Golgi apparatus
Explanation: The Golgi is responsible for packaging sorting tagging and distribution.
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What soil horizon is the most important for the growth of plants (agriculture) ?
Which protists contain both chloroplasts and eyespots?
A .amoeba and paramecia
B. volvox and paramecia
C. euglena and amoeba
D. euglena and volvox
.
D. Euglena and volvox contain both chloroplasts and eyespots.
What are protists?
Protists are single-celled microorganisms that belong to the kingdom Protista. They are unicellular organisms that are not classified as bacteria, fungi, or animals, and are the simplest of the eukaryotes (organisms with a true nucleus and other membrane-bound organelles). Protists are found in a wide variety of habitats, from freshwater to marine environments, and are important for their role in the food chain, as well as for their impact on human health.
Protists come in a wide range of shapes and sizes, from amoeba-like organisms that can change shape, to algae with chloroplasts, to parasites that can cause diseases in humans and other animals. Some protists can move on their own, while others are immobile. Some can reproduce asexually, while others reproduce sexually. Despite their diverse forms and functions, all protists are considered to be part of the same kingdom because of their shared characteristics and evolutionary relationships.
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Question 1/7 The Nile River carries sediments to the ocean. Over time, the sediments are compressed as more sediments are deposited on top of them. Which type of rock will be formed?
Answer:
Sedimentary Rock
Explanation:
Sedimentary rocks are formed from pieces of sediments or other existing organic matter or rock.
The sedimentary rock formation process begins with weathering which involves the breakdown of the sediments into small fragments. The next process is erosion, where water like the Nile River carries them to other places - in this case, the Ocean.
Over time, the sediments settle and become compressed as more sediments are deposited on top of them.
This leads to the formation of Sedimentary Rocks.
2 differences between
monocotyledondus and dicotyledonas plants
Answer:
1)The monocot embryos have a single cotyledon.
The dicot embryos have a pair of cotyledons.
monocotyledons
2)They have a fibrous root system.
dicotyledonous.
They have a tap root system.
If a chromosome comes apart because it is not well attached at the center, 1 point
then there is most likely a problem with the
centromere
chromatids
chromatin
gene
Answer: The most problem is likely with chromatin
Explanation:
If a chromosome comes apart because it is not well attached at the center, The most problem is likely with chromatin.
What is chromosome ?
A chromosome is a thread-like structure present in the nucleus of cells such as both prokaryotic and eukaryotic cell and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.
It is composed of three components, DNA, proteins and RNA, amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.
Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).
The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome is present in two forms such as Euchromatin and Heterochromatin.
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Anxiety sensitivity is the apparent cause, origin, and development of a particular disease.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
Anxiety is rarely caused by physical diseases.
Anxiety sensitivity is not the apparent cause, origin and development of a specific disease.
What is anxiety sensitivity?It is the fear of sensations or behaviors related to the experience of anxiety, and a misunderstanding of such sensations as dangerous. Some of the sensations of the body associated with anxiety like palpations and nausea are misinterpreted as harmful experiences, which makes the fear or anxiety to intensify.
Anxiety sensitivity is not the apparent cause of a particular disease. It is however, the anxiety or fear, which one gets after getting a specific disease and mistaking it as a harmful experience.
Thus, the given statement is false.
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What is the connection between land use and biodiversity ?
Does anyone have gce o levels biology matters 2nd edition workbook answers?
no I don't have it as I am studying in 5th grade
Put "Gene Pool" in a sentence
Answer:
A gene pool is a collection of all the genes in a population. This can be any population - frogs in a pond, trees in a forest, or people in a town.
Explanation:
An example of a nucleotide is?
A. cytosine, ribose, and deoxyribose
B. guanine, deoxyribose, and phosphate
C. uracil, deoxyribose, and phosphate
D. thymine, ribose, and phosphate
Answer:
B
Explanation:
A nucleotide always consists of 3 things:
1. A sugar group (either ribose or deoxyribose, ribose if the nucleotide is from RNA, deoxyribose if it is from DNA.
2. A phosphate group
3. A nitrogenous base (A/T/U/C/G) This base depends on whether you have RNA or DNA, U is only for RNA. DNA has either A/T or C/G but never U.
what information is copied from DNA to mRNA
Answer: transaction
Explanation:
Answer:
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
Explanation:
PLEASE MARK ME AS BRAINLIEST
which of the following is a stimulus, which response?
A. The recess bell ringing in a elementary school
B. Your mouth watering at sight of food on a plate
C. A sudden drop in air temperature
D. A flu virus entering your body
E. Getting "butterflies" in your stomach before giving a speech
Answer:
A. Stimulus
B. Response
C. Stimulus
D. Stimulus
E. Response
Explanation:
What happens to the effenciency of the exchange of oxygen in the human body at a high altitude
Answer:
The effiency decreases at higher altitudes
Explanation:
The higher up a person is on a mountain, the thinner the air is due to the lack of plants that can grow. An example of this is Mount Everest. At a certian point on the mountain, called the "Death Zone", the air is too thin to supply enough oxygen to the human body to survive. That's why they bring oxygen tanks with them on their adventures.
I need help with 1,2,4,5,6, and 7. I already did 3 :)
Answer:
Answers, in order:
40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10
How are rabbits adapted? Write in short.
Answer:
The rabbit's eyes are set high on the head, and is complimented with a weak but very flexible neck which allows the animal to rotate its head. These adaptations let the rabbit have a greater field of vision, which helps in spotting food as well as predators. They also have strong legs that are made for running.
Explanation:
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of
Answer:This is an example of asexual reproduction.
Explanation:
Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.
Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:
--> Fission
--> Budding
--> Spore formation
--> Fragmentation and
--> Vegetative propagation.
The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.
Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include: Fission Budding Spore formation Fragmentation and Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting mediaThus, The given case shows an example of - asexual reproductions.
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What is the main function of the organs thyroid gland, adrenal glands, and pancreas?
Answer:
D
Explanation:
I hope it helps you, good luck!
The pituitary gland is most similar to:
A A worker in a factory
B A mail carrier
C The boss of a big office
D A security guard or police officer
Answer:
C. The boss of a big office
Explanation:
It tells all the other hormones what to do
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pls ans this qa i will mark u as brainlist ans
ans b
Explanation:
milk teeth are less than permanent teeth
The special job an organism plays in it's ecosystem is it's __________.
biome
population
niche
biodiversity
Answer:
Niche
Explanation:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.
Answer:
niche
Explanation:
The role a species plays in the ecosystem is called its niche. A habitat is the physical environment in which a species lives.
which phase best describes meiosis I?
Answer:
Division of homologous chromosomes.
I hope it's helpful!
Please help me I beg you please help
Answer:
A-T
T-A
T-A
C-G
A-T
G-C
G-C
C-G
T-A
A-T
Answer:
ATTCAGGCTA= TAAGTCCGAT
Explanation:
adenine pairs with thymine with 2 hydrogen bond in DNA and cytosine pairs with Guanine with 3 hydrogen bonds .
1. Describe what occurs in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal. In your response, include the following terms
Metabolized, Glucose, Insulin, Cell receptors, Pancreas, Energy
The process which would occur in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal is:
The digestive system tries to break down the complex sugars which increases the blood sugar level which leads to the production of insulin to maintain the blood sugar level throughout the body.A Type 1 diabetic person is one who has been diagnosed with the level of diabetes, where the pancreas does not produce enough insulin to control the sugar levels of the body.
With this in mind, when such person consumes a high carbohydrate meal, it means that he has ingested complex sugars which would be difficult for the digestive system to break down which would overwork the pancreas, but as there is little or no insulin production, then there would likely be health complications.
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PLZZ HELP IM DOING A UNIT ASSESMENT!!!!
What types of cells would contain cell walls and what types of cells would contain a cell membrane?
Answer:
I agree with the other person
have a good day :)
Explanation:
Explain how a. temperature and b. light intensity 0 affect the rate of transpiration.
Answer:
Explanation:
Transpiration can be regarded as process involving water movement through a plant, it involves evaporation from aerial parts. These aerial part could be such leaves, stems or flowers.
A)Temperature
During the day period when the weather is hot there would be increase in evaporation of water from the leaves of plants, due to this transpiration is increased
B)Light intensity
When there is bright light, when the light intensity heat the plants, the stomata would be opened so that carbon dioxide is supplied for photosynthesis, and more water would be evaporated out through the leaves of the plant, then transpiration increase
____is a restriction to the flow of electrons
Answer:
Impedance.
Explanation:
Conductors allows the flow of electrons and Impedance restricts it.