Answer: In DNA the parent duplicates itself through a process known as mitosis. Any offspring is going to have the same exact DNA as the parent. (same characteristics, everything).
The comparison of the DNA of an offspring to the DNA of its parents is determined by the fact that every offspring gets 50% of its genome from each parent, but it is always a different 50%.
How does the DNA of parents compare to that of offspring?In the process of sexual reproduction, meiosis produces haploid gametes that fuse during fertilization to produce a diploid zygote. In other words, an offspring inherits half of the genetic material from each parent. The children resemble their parents, but they are not identical to them.
During the process of meiosis, gametes get a random chromosome from each pair. This means that there are over 8 million possible DNA combinations from 23 chromosome sets. Due to this, the difference in the genetic material or DNA sequences is occurred due to the process of variations between them while DNA copying.
Therefore, the comparison is made due to the mechanism through which every offspring gets 50% of its genome from each parent, but it is always a different 50%.
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Some human white blood cells help destroy pathogenic bacteria by *
(1) causing mutations in the bacteria
(2) engulfing and digesting the bacteria
(3) producing toxins that compete with bacterial toxins
O (4) inserting part of their DNA into the bacterial cells
Answer:
2
Explanation:
They either engulfy and digest pathogens(phagocytosis) or produces antibodies.
Some human white blood cells help destroy pathogenic bacteria by engulfing and digesting the bacteria. The correct option is B.
Thus, By engulfing pathogenic bacteria through a process known as phagocytosis, some human white blood cells, notably phagocytes like neutrophils and macrophages, aid in the destruction of pathogenic germs.
These phagocytes have the capacity to identify and bind to bacteria, creating a phagosome—a membrane-bound compartment—around the bacterium.
The phagosome then joins forces with lysosomes, which are organelles that carry digesting enzymes, to create a phagolysosome. The bacteria are exposed to the lysosomal enzymes inside the phagolysosome, which causes them to break down and die.
Thus, Some human white blood cells help destroy pathogenic bacteria by engulfing and digesting the bacteria. The correct option is B.
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What is the correct order?
Answer:ookkk
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HOPE U GET IT CORRECT MUAHAHAHAHAHAHHAHAHA
list the 3 main types of rocks and the process of how they are craeted
Fresh steak is said to have both negative and positive redox potential. Discuss how the redox potential affects the microbial ecology of the food
Answer:
Increases redox potential decreases microbial growth inside food.
Explanation:
The redox potential is considered as one of the most complex indicators of the physical conditions of microbial cultures. The measurement of redox potential could be very useful for the determination of qualitative and quantitative parts of the microbial contamination. During the bacterial growth, the redox potential of the medium decreases. Redox potential is a measure of the tendency of a biological species which can be acquire or lose electrons through ionization. If the redox potential of the medium is increases, there will be lower growth of microbes in the food and vice versa.
what are the different between plant and animal cell.
Answer: A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. Animal cells simply have a cell membrane, but no cell wall.
Explanation:
Ophrys sphegodes, the early spider orchid, has flowers with yellow-green sepals and petals and one highly modified, velvety brown central petal at the base of the flower. There is single male anther is found at the tip of the column. The stigma is on the underside of the column just below the anther.
Required:
a. Is the flower complete or incomplete?
b. Is the flower perfect or imperfect?
c. Is the flower radially or bilaterally symmetrical?
Answer and Explanation:
a. This is a complete flower. Complete flowers are those formed by chalice, corolla, androecium and gynoecium. In the case of the flower presented above, we can see that it has gynoecium because it has a stigma that is part of the gynoecium composition. We can also see that she has androecium, because she has an anther that is part of the composition of androecium. The flower also has a corolla and chalice, since the chalice is formed by the sepals and the corolla by the petals.
b. This is a perfect flower, as we can see that androecium and gynoecium are present in the same flower. Imperfect flowers are those with only androecium or gynoecium.
c. The flower has bilateral symmetry, which is common in all orchids. This type of symmetry allows the flower to only be divided into two equal parts. Radial symmetry, on the other hand, allows flowers to be divided into many equal parts.
A.O. is an 89-year-old woman with a long history of systolic heart failure secondary to a large left ventricular infarct when she was in her 70s. She had poor activity tolerance and required assistance with activities of daily living. Even minimal activity was associated with moderately severe dyspnea and exertional chest pain, which was relieved by rest. A.O. also exhibited marked pedal edema bilaterally. She is being treated with digitalis, furosemide (Lasix), KCl, and sublingual nitroglycerin.
What compensatory mechanisms are likely to be operative in A.O. to enhance cardiac output?
A. Prolonged stretch on the myocardium results in myocardial atrophy.
B. Baroreceptors detect low blood pressure and cardiac output and activate the parasympathetic system resulting in increased heart rate.
C. Renin-angiotensin system activation causes decreased glomerular filtration rate and fluid retention, which results in increased preload.
D. Baroreceptors detect low blood pressure and cardiac output and activate the sympathetic system resulting in decreased heart rate.
Answer:
The correct answer is ''C. Renin-angiotensin system activation causes decreased glomerular filtration rate and fluid retention, which results in increased preload.''
Explanation:
In states of low cardiac output, the renin-angiotensin-aldosterone pathway is activated as a compensatory mechanism, whose objective is to fundamentally modify the peripheral circulation, which operates in conjunction with the activation of the medullary neuro-adrenal system, to maintain blood pressure. These two mechanisms, which are totally different, are closely linked; thus, stimulation of beta-1 adrenoreceptors in the juxtaglomerular apparatus, as a consequence of a high adrenergic output, causes renin output in heart failure. On the other hand, the activation of baroreceptors in the renal vascular bed caused by a reduction in renal blood flow, is also responsible for the release of renin, it occurs in patients with severe heart failure managed with diuretics and salt restriction.
which describes the importance of seed dispersal
Answer: s e e d d i s p e r s a l
Explanation:
Leucine biosynthesis occurs in a multistep pathway starting from 2-oxovalerate, and the final product of the pathway (leucine) inhibits the first enzyme involved in the biosynthetic pathway through a process called feedback inhibition. This enzyme inhibition occurs, regardless of whether or not the 2-oxovalerate substrate is bound in the active site of the enzyme. Describe what type of inhibitor leucine is and justify your response.
Answer:
it is a type of mixed inhibition referred to as 'non-competitive inhibition'
Explanation:
Mixed inhibition occurs when an inhibitor binds to the enzyme in a site different from the active site where the substrate binds (i.e., the allosteric site). The term 'mixed' is because this inhibition is a mixture of competitive inhibition, where the inhibitor competes with a substrate to bind to the enzyme, and uncompetitive inhibition, where the inhibitor binds only to the complex formed between the enzyme and its substrate. In competitive inhibition, the maximal velocity of the reaction (Vmax) does not change, whereas the apparent Km (i.e., the concentration of substrate which permits the enzyme to achieve half Vmax) increases. Moreover, in non-competitive inhibition, the Km does not change, whereas the Vmax decreases. Non-competitive inhibition is a special type of mixed inhibition where the apparent Vmax (V app-max) is reduced, while the Km of the enzyme is unaffected.
is a archaebacteria cell wall present or absent
Answer:
Archaebacteria have cell wall made of complex composition of peptidoglycan
What is the most important factor in determining if cancer treatment will be successful?
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Which of the following things is not made of wither fermentation?
Cheese
Yogurt
Bread
Peanut butter
Chocolate
Answer:
peanut butter
Explanation:
it's very creamy and thick so I might say it's peanut butter
i need help with number 3 thanks
(IM BRANLESTING I FOR GOT HOW TO SPELL IT AND AGAIN THANKS)
Answer:
Two plant groups you could look at are land-based plants and water-based plants.
Explanation:
Land-based plants:
Land-based plants are plants that can be found on land. They tend to be taller in order to absorb as much sunlight as possible. Land-based plants often have roots that are rooted in soil, and take in water and nutrients from there. Land-based plants taken in oxygen and carbon dioxide directly from the atmospheric air around them. In terms of the location of their stomata, stomata can be found on the underside of leaves, where they take in carbon dioxide and release oxygen.
Water-based plants:
Water-based plants can be found either submerged or floating on water. They tend to be broader instead of taller. For instance, their leaves will be broader in order to absorb maximum sunlight. This is because (especially for completely submerged water plants), light does not penetrate as deeply into water, leaving the plant with less light energy to photosynthesize. Water-based plants often have roots that either dig into the soil if they are found at the ocean floor, or hang freely in the water if they float on water surfaces. Unlike land-based plants, water plants, especially those that are fully submerged, take in dissolved carbon dioxide and oxygen gas in the water instead of from the air and atmosphere. The stomata of water-based plants are often found on the upper side of their leaves, in order to have better access to atmospheric oxygen and carbon dioxide.
what are renewable natural resources?
Explanation:
It's a natural resource which will replenish to replace the portion depleted by usage and consumption.
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Answer:
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Explanation:
5
5. What happens to energy when chemical bonds are formed? You w
Answer:
The total energy input or output of a reaction equals the energy released in forming new bonds minus the energy used in breaking the original bonds. If it takes more energy to break the original bonds than is released when the new bonds are formed, then the net energy of the reaction is negative
Explanation:
According to the diagram below, what type of organism converts atmospheric nitrogen (N2) to ammonia (NH3) and then to nitrites (NO2-) and nitrates (NO3-)?
Answer: Nitrogen-fixing Bacteria
Explanation:
In the Nitrogen cycle, nitrogen fixing bacteria are very important in ensuring that plants get nitrogen to enable them grow and as animals have to eat plants, these bacteria are essential for our survival as well.
Plants are unable to use atmospheric nitrogen but nitrogen-fixing bacteria are able to synthesize ammonia from atmospheric nitrogen. They can then convert this to Nitrites and Nitrates which are more useful to plants and animals by extension.
Which class of Lever is being described if you are standing on tiptoes and if: The Fulcrum is at the metatarsal and phalanges, which is at one end of this lever on the anterior side of the body. The Load is your body weight which is in the middle of this lever. The Effort is exerted by the gastrocnemius and soleus muscles at the calcaneal (Achilles') tendon on the other side of this lever on the posterior side of the body.
Answer:
Second class lever
Explanation:
A second class lever is when the resistance ( load/weight ) is placed in between the axis ( Fulcrum which is formed by the metatarsal and Phalanges ) and the force ( Achilles tendon ) that is applied to the lever. hence the class of lever being described is a second class lever
There are three classes of lever ( 1st class, 2nd class and third class ) but The most common lever found in Humans are the 3rd class levers. but standing on tiptoes by an individual is a perfect example of a 2nd class lever found in a Human.
The Load being the body weight being and in the middle of this lever is
referred to a the second class lever.
The second class lever has the load in between the effort (force) and the
fulcrum. A common example is the wheelbarrow which has the load in the
middle.
In this scenario, the load which is the body is between the
effort(gastrocnemius and soleus muscles) and the fulcrum is the phalanges
which is a characteristic of a second class lever.
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AG CLASS
Complete the following sentence.
A science professional who studies diseases of plants is called a plant _________.
No options to choose from:(
Answer:
A botanist
Explanation:
Botanist scientist
The main difference between the gravitational force and electrical force is that
1. Gravitational force can only push
2. Gravitational force can pull and push
3. Electrical force can only pull
4. Electrical force can pull and push
The difference between the gravitational force and electrical force is that the electrical force can pull and push while the gravitational force is only attractive which means it can only pull.
What do you mean by Gravitational force?Gravitational force may be defined as a conservative force by which the earth allures other objects by mass.
The basic difference between both two forces is that the gravitational force can only attract masses, while electrostatic force either attracts or repel when two charges of the same sign are gathered.
Therefore, the correct option for this question is D.
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On the planet Feline, there are only cats. For one particular phenotype, Myles, there are two manifestations: either the cats like jazz music (the wild type phenotype) or they do not (the mutant phenotype). Under the assumption this phenotype is determined by a single gene with two alleles, and given that a mating of two wild-type cats produces the following number of offspring: Female, wild-type: 341; Male, wild-type: 369; Female, Myles: 121; Male, Myles: 123. The mode of inheritance most consistent with these data is:________
A. Autosomal dominant.
B. Two-locus inheritance.
C. Sex-linked recessive.
D. Autosomal recessive.
E. Two-locus dominant.
Answer:
D. Autosomal recessive.
Explanation:
Available data:
One diallelic gene codes for the phenotype MylesOne allele expresses the wild type phenotype → like jazz musicThe other allele expresses the mutated phenotype → don´t like jazzCross: Between two wild catsF1) Female, wild-type: 341; Male, wild-type: 369; Female, Myles: 121; Male, Myles: 123Autosomal recessive inheritance characterizes because the mutated gene locates in one of the 22 non-sexual, somatic chromosomes. To express the phenotype, an individual must carry two copies of the mutated gene. For this reason, the recessive allele must be present in both the male/father and the female/mother.
In the exposed example, the numbers among the progeny are 341:369:121:123. These values approximate a phenotypic ratio 3:1 for females, and for males. This ratio suggests that the cross was performed between two heterozygous individuals.
Let us name the alleles M and m, dominant and recessive respectively. The cross would be like follows
Cross: wild-type male x wild-type female
Parentals) Mm XY x MmXX
Gametes) MX, MY, mX, mY MX, MX, mX, mX
Punnett Square) MX MX mX mX
MX MMXX MMXX MmXX MmXX
mX MmXX MmXX mmXX mmXX
MY MMXY MMXY MmXY MmXY
mY MmXY MmXY mmXY mmXY
F1) Whole progeny
12/16 = 3/4 = 75% Wild-type cats → MMXX + MmXX + MMXY + MmXY4/16 = 1/4 = 25% Mutated cats → mmXX + mmXYFemales
6/8 = 3/4 = 75% Wild-type cats → MMXX + MmXX 2/8 = 1/4 = 25% Mutated cats → mmXXMales
6/8 = 3/4 = 75% Wild-type cats → MMXY + MmXY2/8 = 1/4 = 25% Mutated cats → mmXY
Main idea: In a solar eclipse the moon blocks out the sun.
Which of the following details supports the main idea?
A.
A solar eclipse is magnificent.
B.
The atmosphere of the sun is called the corona.
C.
The moon casts a shadow on the earth.
D.
The moon casts a shadow on the sun.
A identificação é imprescindível em qualquer sistema de produção animal, porque:
A) permite apenas que o produtor identifique seus animais.
B) permite o controle do rebanho a detecção dos pontos críticos e favorece as tomadas de decisões nas propriedades. Independente do método de identificação adotado é importante o comprometimento dos profissionais envolvidos com a coleta e armazenagem dos dados.
C) permite identificar o animal doente.
D) permite escolher o melhor animal.
Which of the following shows the correct progression of organisms on the planet?
a. Reptiles, fish, hominins
b. Fish, reptiles, hominins
c. Prokaryotes, angiosperms, gymnosperms
d. Reptiles, mammals, fish
The correct progression of the organisms listed is : ( B )
Fish, reptiles, hominins ( B )The existence of organisms on the planet started millions of years ago and these organisms gradually progressed from one type to another.
Oldest organismThe first and oldest organisms that existed on earth where the prokaryotes which where in existence around 3800 million years. But following the correct order of progression of organisms as represented in the options is :
Fish Reptiles HomininsThis is because Fish existed about 450 million years before Reptiles which started existing about 315 million years while Hominins also known as Homosapiens where among the last organisms to inhabit the planet through their existence.
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Answer:
the answer is (B) fish, reptiles, and hominins
Explanation:
Mutations that change the structure or number of chromosomes are called
chromosomal mutations. ¿What is the difference between
inversion and translocation?
An inversion is pretty much when the chromosome breaks and rearranges itself, and translocation is when a part of a chromosome is transferred to another chromosome. hope it helped :)
I need help to make an acronym with these words
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
like, for example, "please excuse my dear aunt sally"
(parenthesis, exponents, multiplication, division, addition, subtraction.
Answer:
Dear kayla please come obediently for Gary's safety
¿De acuerdo a las preferencias alimenticias de los estudiantes, según la encuesta, qué tipo de hidratos de carbono no han sido preferidos en su alimentación? ¿Según las características de estos carbohidratos, qué beneficios provocan en la salud humana?
Elevation is to land as _______________ is to water.
rain
river
depth
moisture
Answer:
depth
Explanation:
someone help me and explain
Answer:
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Explanation: theres the answer
what does the term conversion nation mean in regards to energy
Answer:
https://search.yahoo.com/search?fr=mcafee&type=E210US91088G91495&p=brainly.com
Explanation: