Answers
Answer:
The correct answer is - in the sickle-cell hemoglobin is the replacement of glutamic acid with valine in the β-globin amino acid chain.
Explanation:
Sickle cell anemia has a mutant gene in which that produces has valine amino acid instead of glutamate in the hemoglobin protein. In the given question the structure of the protein has only one difference that is the replacement of the glutamic acid in normal hemoglobin to valine in the β-globin amino acid chain in the mutant protein.
Valine 6 (beta chain) binds to a different hydrophobic patch (on the alpha chain and causes the disease in sickle cell anemia cases.
Related Questions
Question: How is it that traits can vary so much in the same family?
Answers
Answer: One component, called shared environment, includes all environmental influences that make children in a family similar to one another.
Explanation: Environmental variance not due to shared environment is called nonshared environment; this portion of environmental variance makes family members different from one another.
Mendel came up with two principles? True False
Answers
He actually came up with 4
i’ll mark brainliest
how do organisms with many cell types develop from a single cell
Answers
Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
Volcanic eruptions, breathing, decaying dead matter, burning fossil fuels, and warm bodies of water are all carbon examples of which of the following?
A) sources
B) sinks
C) reservoirs
D) all the above
Answers
Answer:
the answer is a
Explanation:
Volcanic eruptions, breathing, decaying dead matter, burning fossil fuels, and warm bodies of water are all carbon examples of sources. Therefore, option (A) is correct.
What are sources of carbon?Carbon is one of the most important elements for life on Earth, and it can be found in a variety of sources. Some of the most common sources of carbon include:
Fossil fuels: coal, oil, and natural gas are all made from carbon-based materials that have been buried and transformed over millions of years.Plants: Plants take in carbon dioxide from the atmosphere during photosynthesis and use it to build their tissues.Animals: Animals obtain carbon by eating plants or other animals.The ocean: The ocean contains dissolved carbon dioxide, which can be absorbed by marine organisms and transformed into calcium carbonate, a key component of shells and other structures.Soil: Carbon is stored in soil as organic matter, such as decaying plant and animal material.The atmosphere: Carbon is present in the form of carbon dioxide, methane, and other gases in the atmosphereLearn more about carbon sources, here:
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8.All of the following are simple machines except one. Please select the choice that is NOT a simple machine. A.Wheel and axel B.Screw C.Dish Washer D.Bike
9. We use simple matchines in our daily life.If i use a knife to cut my sandwitch for lunch,_ _ _ _ _ . A. I've used less force and done less work.
B. I've used more force and done more work.
C.I've used less force and done the same amount of work.
D.A knife is not an example of a simple machine.
Answers
Answer: Dish Washer
Explanation:
What will most likely happen if a sound wave moves from the air through a solid?
It will increase in wavelength.
It will decrease in speed
It will increase in speed
It will decrease in wavelength.
lark this and not
Answers
Answer:
decrease in speed is the answer
All Archaea and bacteria are microscopic, prokaryotic organisms. However, Archaea and bacteria differ in significant ways. Which of the following is the MOST important reason that Archaea and bacteria belong to separate biological domains?
Archaea are often resistant to antibiotics
O Archaea do not have a nucleus
O Archaea are found as single cells or colonies
O Archaea often live in more extreme conditions than bacteria
Answers
Archaea does not have a nuclei which is a prokaryote. It rapidly moves to different areas . I hope I’m right
The most important reason that Archaea and bacteria belong to separate biological domains is Archaea often live in more extreme conditions than bacteria.
What are the examples of biological domains?There are three domains of life, the Archaea, the Bacteria, and the Eucarya. Organisms from Archaea and Bacteria have a prokaryotic cell structure, whereas organisms from the domain Eucary encompass cells with a nucleus.
Examples include memory, mate choice, relationships between kin, friendship and cooperation, parenting, social organization, and status.
This phylogeny overturned the eukaryote-prokaryote dichotomy by showing that the 16S rRNA tree neatly divided into three major branches, which became known as the three domains of (cellular) life: Bacteria, Archaea and Eukarya.
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___are eukaryotic unicellular or multicellular autotrophic or heterotrophic.
Archaebacteria
Animalia
Fungi
Protista
Answers
Answer:
Protista
Explanation:
Characteristics of Protists: mostly unicellular, few multicellular, eukaryotic, can be heterotrophic or autotrophic.
hope you have a good day
What statement is true about vines in the rainforest biome?
A) They grab onto several trees to gain access to sunlight.
B) They keep the structure of the canopy intact.
C) They can grow up to 3,000 ft long.
D) All of the above
PLS HELP ASAP
Answers
Answer:
D
Explanation:
Hope this helps you complete your question :)
In mice, a certain species displays incomplete dominance in coat coloring. The offspring of a
black (BB) mouse and a white (bb) mouse are gray (Bb) mice. A cross between two gray
mice will most likely produce offspring with which percent of coat colors?
A. 25% black, 75% gray
B. 25% gray. 75% white
C. 25% white, 25% black, 50% gray
D. 25% gray. 25% black, 50% white
Answers
Explanation:
Draw a pedigree! :)
Which of the following statements regarding cell size is true?
Large animals have large cells
Small animals have small cells
Large animals have small cells
Large animals have more cells
Answers
Answer:
Large animals have more cells.
Explanation:
The animal is larger so it's going to compose of more cells then a small animal, but the cells are still the same size.
A lake has very deep water at the bottom, in the benthic zone. Why is it more difficult for plants to live in the benthic zone of this lake than in the limnetic zone
Answers
Answer:
See the answer below
Explanation:
It is quite difficult for plants to survive in the benthic zone due to the limited penetration of light in the zone when compared to the limnetic zone. The limnetic zone is a well-lit area of a lake or pond while the benthic zone represents an area around the bottom of any water body - marine or freshwater.
Light is an important factor for plants because the light is necessary for photosynthesis - a process through which plants get their foods. Hence, due to limited light in the benthic zone as opposed to the limnetic zone, plants would find it easier to survive in the latter compared to the former.
____ are unicellular organisms with no nucleus that can cause diseases and pain with toxins.
word bank: protists, antibiotics, infectious, bacteria, pathogen, viruses, fungi, vector, vaccine.
Answers
50 years ago people were much more willing to get vaccines for diseases like polio, measles, and pertussis. Why are people more afraid to get them today?
Answers
People are more afraid to get them today because of the side affects they might cause.
What waste (gas) does the repiratory system remove from the body?
A. Oxygen
B. Water
C. Carbon Dioxide
Answers
hope this helps
4. I need help with this question
Answers
Answer:
F
Explanation:
What is a gene?
A) the different forms of a trait
B) a segment of DNA that is the basic unit of heredity
C) the appearance or characteristics that are seen in an organism
D) an organism's allele combination
Answers
Answer:
B) a segment of DNA that is the basic unit of heredity
Explanation:
What is a gene:
a segment of DNA that is the basic unit of heredity
Which of these is not true for the crust?
Group of answer choices
You can dig through it
It's split into plates
It's the thinnest layer of the earth
It's made of granite and basalt
pls i need help it’s a test!
Answers
Answer:
I guess the answer is d ......
which characteristic of a living organisms is responsible for the production of oxygen in the leaf of plant exposed to sunlight
Answers
Answer: i got a better question
Explanation: how about asking why are cheating here lol:)
Give an example of exaptation in humans.
Answers
Answer:
As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans' ancestral past ( Gould, 1991 ).
Explanation:
As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans' ancestral past ( Gould, 1991 ).
6 ways of expressing standard atmospheric pressure(physical science)
Answers
6 ways of expressing standard atmospheric pressure include: millimetres (or inches) of mercury, pounds per square inch (psi), dynes per square centimetre, millibars (mb), standard atmospheres, and kilopascals.
Moving ridges of water on the surface of the ocean caused by wind and constantly cause weathering along the shoreline. *
Answers
Answer:
Waves
Explanation:
Waves are moving bodies of water that crash against the shore and cause erosion.
Which of the following does not have an effect on enzyme activity?
Temperature
Amount of oxygen
Number of substrates
Shape of active site
Answers
Enzyme activity is based on various factors. Some of these factors are temperature, number of substrates and shape of active site.
What is enzyme activity?Enzyme is a molecule or a chemical that alters the rate of reaction. It can either increase or decrease the reaction rate.
The part of enzyme which binds to the substrate is called active site.
There are many factors that affect the enzyme activity, these are:
Temperature. pH.concentration.Number of the substrate.Shape of the active site.Thus the correct option is b.
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please help !!!!!!!’
Answers
Answer:
I think A energy from the sum may be right answer
I think it's energy from the sun
Why is energy transformed from one form to others?
Answers
Answer:
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
The small size of cells _____.
1.allows for fewer cell organelles
2.causes food to be broken down slowly
3.allows for efficient transport of materials
Answers
when would anaerobic respiration be used instead of anaerobic respiration?
Answers
Answer:
produce 2 anaerobic respiration
The Yersinia pestis bacteria cause what disease?
O Hantavirus
O Rabies
Plague
Ringworm
Answers
Answer:
Plague
Explanation:
The Yersinia Pestis bacteria causes Plague.
Replicate the following DNA sequence: TCT *
Replicate the following DNA sequence: GGG *
Replicate the following DNA sequence: GGA*
Voir
Answers
Hint:
A goes with T
T goes with A
C with G
G with C
define thigmotropism, phototropism, and gravitropism and give an example of each
Answers
Answer:
a) Thigmotropism
b) Phototropism
c) Gravitropism
Explanation:
A) the turning or bending of a plant or other organism in response to a touch stimulus. example: the folding movement of the Mimosa pudica leaflets, can be considered as an example of thigmonastism.
B) the orientation of a plant or other organism in response to light, either towards the source of light ( positive phototropism ) or away from it ( negative phototropism ).example: Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.
C) The gravity-directed growth process, called gravitropism, dictates upward shoot growth to ensure a proper positioning of the leaves for efficient photosynthesis and gas exchange. example: tree has fallen over and due to gravitropism exhibits this arched growth.