Which is the biggest disadvantage of using unipotent stem cells for medical treatment
Answer:
they can make only their own type of cell
Explanation:
A P E X
Answer:
they can make only their own type of cell
Explanation:
Ape-x
A small percentage of the body’s iron supply circulates freely in the blood, bound to a protein called transferrin. Transferrin binds to specific proteins on the surfaces of a cell's plasma membrane. The cell then ingests the transferrin by forming a pit, which becomes a vesicle. Which of the following BEST describes how transferrin is transported across the plasma membrane? A. exocytosis B. pinocytosis C. phagocytosis D. receptor-mediated endocytosis
Answer:
What best describes how transferrin is transported through the erythrocyte plasma membrane is receptor-mediated endocytosis.
Explanation:
The incorporation of transferrin across the erythrocyte membrane depends on a transferrin receptor expressed on the surface of the membrane. The specific receptor recognizes the presence of iron-charged transferrin, transferin diferrica, incorporating it into the cell by endocytosis. Once in the cytoplasm, the iron is dissociated from the transferrin.
Free transferrin is called apotransferrin. The transferrin receptor has a high affinity for transferrin di-ferrica, which facilitates its incorporation by endocytosis, and the release of apotransferrin into the extracellular space.
The other options are not correct because:
A. Exocytosis implies the exit of substances from the cell.
B. Pinocytosis involves the invagination of the membrane to incorporate soluble substances into the cell.
C. Phagocytosis is the incorporation of solid substances by invagination of the membrane.
In a population, there are 500 cats. What is the frequency of black cats if 300 are calico?
Answer:
2 out of every 5 or 2/5
Explanation:
there are 200 black cats because there are 300 calico there are 500 total so it would be 200/500 or 2/5
List one change in behavior that you would reasonably expect in bug populations that have been living on golden rain trees.
Answer:
List one change in bug morphology and behavior that you would reasonably expect in bug populations that have been living on golden rain trees. Females will be the same size as males, and there will be less competition to reproduce early. 15. Bugs are small relative to their host plants.
Explanation:
Brainliest please?
Which of the following best describes how does latitude affect biomes?
Latitudes affect how much rainfall a biome will receive.
Lower latitude biomes will always have high temperature.
Higher latitudes produce warm biomes.
Higher latitudes receive less sunlight producing cold biomes.
Answer:
Higher latitudes receive less sunlight producing cold biomes.
Explanation:
Regions with similar climates and plant types are called biomes.
Terrestrial regions may be classified as desert biomes, rainforest biomes, grassland biomes, temperature deciduous forest biomes, tundra biomes, northern coniferous forest biomes, savanna biomes, and mediterranean biomes.
Because these biomes are mostly defined in terms of dominant vegetation or plant species, they are determined by rainfall and temperature. In general, higher latitude biomes are further away from the equator, less sunlight and heat- this results in drier climates with less rainfall and lower, cooler, temperatures.
Eugene is running and needs more energy. He drinks a sports drink with sugar, but that sugar needs to be converted to another substance containing chemical energy for his leg muscles to be able to use it. Which process will convert the sugar to energy that his cells can use? cellular respiration photosynthesis breathing energy storage
Answer: i put cellular respiration
Explanation:
currently taking the quiz i’ll see if it’s correct
Answer:cellular respiration
Explanation:
its A becase cellular respiration that do what the Question is asking
please help ill give brainliest
Answer:
amoeba: 1 mutation
sponge: 1 mutation
earthworm: 4 mutations
shark: 5 mutations
lizard: 5 mutations
kangaroo: 5 mutations
dolphin: 5 mutations
Explanation:
PLEASE HELP ME WITH THIS QUESTION
Answer:
mitochondiria
Explanation:
The mitochondria produces ATP, which is chemical energy used in cellular respiration and it is sknown as the power house of the cell
Answer:
mitochondiria
Explanation:
How do proteins play an important role in the mating of japanese beetles
Your umbilicus (bellybutton) is (anterior/posterior) to your tushy.
Answer:
i did not understand
Explanation:
In general, the land changes temperature much more rapidly than the
ocean. How does this fact explain the existence of land breezes and sea breezes?
Answer:
Answer
Explanation:
Sea breezes occur during hot, summer days because of the unequal heating rates of land and water. During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean.
how is this food made and what is the role of microorganism in the production of this food?
Answer:
Nature uses microorganisms to carry out fermentation processes, and for thousands of years mankind has used yeasts, moulds and bacteria to make food products such as bread, beer, wine, vinegar, yoghurt and cheese, as well as fermented fish, meat and vegetables.
Explanation:
Which characteristic is most suitable to use to create a question for a dichotomous key?
whether an organism is eating
whether an organism is flying
whether an organism is striped
whether an organism is pregnant
Answer:
C
Explanation:
If genes are on different chromosomes, the Law of Independent Assortment states that -
A) gene pairs always stay together
B) half an organism's gametes have allele per pair
C) gene pairs segregate randomly and independently for each other
D) one allele is always dominant
What do we use natural gas for? (What products and services does it facilitate?)
Natural gas is a non-renewable hydrocarbon used as a source of energy for heating, cooking, and electricity generation. It is also used as a fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.
hope this help! ^^
If a plant has the TtSs genotype, what would the genotypes of its gametes be?
A. Tt, Ss, TS, and ts
B. TT, tt, SS, and ss
C. TS, Ts, tS, and ts
in all what caused the earths temperature to rise by 10 degrees??
Answer: Global Warming
Explanation: Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. ... Temperatures are certain to go up further. Despite ups and downs from year to year, global average surface temperature is rising.
Activity 1C, page 2 soil cross
Suppose that Rosie and Ross are both carriers for PKU (a rare autosomal recessive disease.) If they have eight children, what is the probability that all of eight children will have the same phenotype?
Answer:
1/65,536 = 0.001523 %
Explanation:
A: normal allele
a: recessive allele causing PKU
The probability that Rosie and Ross have one child with PKU will be >>
Aa x Aa = 1/4 AA; 1/2 Aa; 1/4 aa
In consequence, the probability that Rosie and Ross have eight children with PKU will be >>
(1/4)⁸ = 1/65,536 = 0.001523 %
If Rosie and Ross are carriers of PKU, if they intend having 8 children, the probability that they will all have the same phenotype is: [tex]\mathbf{\frac{1}{65,536}; 0.001523 \%}[/tex]
Given that Rosie and Ross are both carriers of the recessive disease, it means that for the disease to manifest itself, two recessive alleles must be present in an allelic pair.
Using P and p to denote the dominant and recessive alleles respectively, we have the following gene of both parents:
Rosie - PpRoss - PpThe cross between both parents has been provided using a Punnett square as shown in the attachment.
The cross shows that, for any cross between both parents, there is [tex]\frac{1}{4}[/tex] probability that the child would have the phenotype, pp, which means the child would have the are autosomal recessive disease.
Therefore, the probability for for 8 children having the same phenotype will be:
[tex]\frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} \times \frac{1}{4} = \frac{1}{65,536}[/tex]
This is also approximately: [tex]\frac{1}{65,536} \times 100 = 0.001523 \%[/tex]
Therefore, if Rosie and Ross are carriers of PKU, if they intend having 8 children, the probability that they will all have the same phenotype is: [tex]\mathbf{\frac{1}{65,536}; 0.001523 \%}[/tex]
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HELP QUICK If a scientist is exploring the surface of a moon during a space mission, what will most likely be found?
The fifth largest moon in the solar system, Earth's moon is the only place Potential for Life? missions that will enable human exploration of the Moon and Mars. A total lunar eclipse occurs when the Moon and Sun are on opposite from around the edges of the Earth, as seen from the Moon's surface. If Earth were the size of a nickel, the Moon would be about as big as a coffee bean. It is most likely made of minerals like olivine and pyroxene, which are made was made in 2008 by the Indian mission Chandrayaan-1, which detected Scientists also found the lunar surface releases its water when the When imagining locations where extraterrestrial life could potentially dwell, few Over the last fifty years, various missions to the red planet have sought to "This deposit is probably more accessible than most water ice on Mars, Scientists also found structures resembling fossilized nanobacteria on the.
WILL GIVE BRAINLIEST PLZ HELP
5. Which of the following scenarios does not describe how body systems are dependent on one another?
A. Oxygen and nutrients are brought to the heart via blood.
B. White blood cells protect the brain from viruses.
C. Bones elongate from messages sent by hormones.
D. Glands keep skin moist.
Answer: Oxygen and nutrients are brought to the heart via blood.
Explanation:
Explain the relationship among homeostasis, defective mitochondria, and the symptoms caused by LHON.
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.
Why is phenylketonuria resulting from dihydropteridine reductase deficiency a more serious disorder than PKU resulting from phenylalanine hydroxylase deficiency?
Answer:
pteridine reductase deficiency alters all reactions known to be dependent on tetrahydrobiopterin (BH4)
Explanation:
Hyperphenylalaninemia is a condition characterized by elevated concentrations of the amino acid phenylalanine in the blood. Dihydropteridine reductase deficiency (DHPR) is a severe type of hyperphenylalaninemia caused by the deficiency of tetrahydrobiopterin (BH4). BH4 helps to convert amino acids, including phenylalanine, to precursors of neurotransmitters. BH4 is an essential non-protein co-factor of enzymes associated with the biosynthesis of dopamine, serotonin, noradrenaline and adrenaline. DHPR is an inherited recessive disorder whose symptoms include mental deficiency, poor swallowing (dysphagia) and an abnormally small skull (microcephaly).
______ form the bulk of the cell structure and most functional molecules
A protein
B molecules
C fats
D vitamins
Answer:
A protein
Explanation:
What is the name of the process shown in the picture below?
A) lipid metabolism
B) translation
C) DNA replication
D) transcription
Answer:DNA replication
Explanation:
Answer:
DNA replication
Explanation:
It looks to me that the top is the leading DNA and the bottom is the replication. The bottom is replicating the top (original)
9
1 point
After it falls as precipitation, water hits the earth as run-off or groundwater.
True
O False
True
Explanation:
Runoff is when water is basically "Running off" and groundwater is water found underground
A granite contains zircon crystals with 275 billion 235U atoms and 1925 billion 207Pb atoms. The half-life for 235U-to-207Pb decay is 704 million years. How old is the granite?
Answer:
The correct answer would be = t = 2.112 billion years
Explanation:
Given:
The number of crystal of uranium = 275 billion
The number of crystal of lead = 1925 billion
The half-life for 235U = 704 million years
Formula using :
N = N0e−λt
where,
no. of daughter atoms = N
at time t= 0, No. of parent atoms = N0.
Time = T
Half life = 0.693/λ
Decay constant = λ
Solution:
by putting value in the formula of the half-life
λ = 0.693/0.704
λ = 0.9844
Now, putting value in the formula for the age of granite.
275 = (275+1925)e^-0.9844 t
1/8= e^-0.9844 t
e^0.9844 t = 8
taking log
0.9844t = 2.07944
t = 2.112 billion years
The granite that contains zircon crystals with 275 billion 235U atoms and 1925 billion 207Pb atoms is 2112 million years old.
From the given information:
the total number of parent atoms is equal to the total number of ²³⁵U atoms
= 275 billion + 1925 billion= 2200 billionNow, from these 2200 billion atoms, 1925 billion of ²³⁵U atoms has changed to Pb²⁰⁷ atoms.
So when the number of half-life is: the parent atom is:
0 2200 billion
1 1100 billion
2 550 billion
3 275 billion
It implies that the parent atoms have passed through three half-life;
Thus, the age of the granite(parent atom) is calculated as:
age of granite = n × [tex]\mathbf{T_{1/2}}[/tex]
age of granite = 3 × 704 million years
age of granite = 2112 million years
Therefore, the age of granite is 2112 million years.
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What do all organisms need? Select three options.
O nervous system
O a place to live
O blood
O water
O food
Answer:
Explanation:
A place to live water and food is the correct answer
The three selected options are place to live, water and food.
What is biological need?
The physical conditions needed for survival of organisms are referred to as biological needs. The same applies to human body which cannot operate and will ultimately fail if these conditions are not satisfied.
All organisms really want five things for survival: fresh air, clean water, food, shelter, and sleep.
Biological needs are important because they are essential to survival. Without air, sunlight, food, water, shelter, sex etc. organism cannot or it is hard to survive.
Thus, the three selected options are place to live, water and food.
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Primary and secondary succession why and how do they happen and what occurs during each?
Explanation:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
what is the type and morphology of Escherichia coli
Answer:
E. coli is a Gram-negative, facultative anaerobe (that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation or anaerobic respiration if oxygen is absent) and nonsporulating bacterium. Cells are typically rod-shaped, and are about 2.0 μm long and 0.25–1.0 μm in diameter, with a cell volume of 0.6–0.7 μm3.
E.coli colonies on agar.
E. coli on sheep blood agar.
E. coli colonies
E. coli growing on basic cultivation media.
E. coli stains Gram-negative because its cell wall is composed of a thin peptidoglycan layer and an outer membrane. During the staining process, E. coli picks up the color of the counterstain safranin and stains pink. The outer membrane surrounding the cell wall provides a barrier to certain antibiotics such that E. coli is not damaged by penicillin.Strains that possess flagella are motile. The flagella have a peritrichous arrangement.It also attaches and effaces to the microvilli of the intestines via an adhesion molecule known as intimin.
Explanation: