Answer:
The primary symptoms of Edwards Syndrome has primary symptoms such as:
Physical Abnormalities. Microcephaly (small and abnormally shaped head)Micrognathia (abnormally small jaw and mouth) Long, overlapping fingers and underdeveloped fingernails. Scrunched fists. Low set-earsHeart ProblemsDevelopmental ProblemsExplanation:
Answer:
Abnormally small head
One or no testicles
Intestinal organs outside the body during birth
Foot is convex
Droopy eyes
Low birth weight
Underdeveloped jaw
Which of the following are advantages for animals that reproduce sexually?
Select ALL that apply
A. offspring are genetically identical to the parent.
B. Sexual reproduction involves mitosis exclusively.
C. deleterious allele are weeded out by natural selection.
D. re-shuffling of genes occurs during gamete formation and fertilization.
E. Two parents of the opposite sex are needed.
Climate is the:
A. how it feels outside today.
B. the temperature.
C. the weather conditions in a particular area for an extended period of time.
D. the change of weather patterns over decades.
Use your understanding of prevention and treatment of viruses to answer the questions below.
A
is a substance containing incomplete portions of a virus that produce an immune response when injected into the body.
I'm a bit confused about this question. But I will try my best to answer. :)
To prevent a certain virus, or increase someone's immunity towards a virus, doctors give patients a shot/vaccine. For example, people get a flu shot yearly to help prevent them from getting the flu. The shot contains a small portion of the flu itself. The flu remains dormant until the body decides to activate it or fight it off. This also helps the body become more immune to the virus/sickness and fight it off easier.
I hope this helps! :)
A hapten is a substance containing incomplete portions of a virus that produce an immune response when injected into the body.
What is the Immune response?The immune response may be defined as the type of reaction that occurs in response to specific antigens or foreign agents. Such types of responses defend the organism against foreign invaders.
A hapten is essentially an incomplete antigenic particle. Such small substances or molecules only elicit an immune response when attached to a carrier known as proteins.
Carrier molecules typically do not elicit an immune response by themselves.
Therefore, it is well described above.
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Which of these is the source of the variation in wing color within the Peppered Moth population?
natural selection
pollution
genetic variation
Answer:
Genetic variation
Explanation:
It could lead to natural selection, but natural selection isn't the cause. Many years down the road you could see a particular variation having a higher population, which is the result of natural selection/survival of the fittest via better camouflaging from predators.
An advantage of using natural gas, rather than oil, as a fuel is that natural gas is less of a contributor to global warming because it does not release CO2 when it burns less of a contributor to global warming because it does not release CO2 when it burns A less expensive because most reserves are in the United States less expensive because most reserves are in the United States B more abundant because it is a by-product of photosynthesis more abundant because it is a by-product of photosynthesis C cleaner because it burns more completely cleaner because it burns more completely D safer to store because it is a gas
Answer:
A. less expensive because most reserves are in the United States
Explanation:
Natural gas is less expensive because in the united states there are huge amount of reservoirs present. According to the research, the United States has about 475 trillion cubic feet of proved reserves and 2,392 trillion cubic feet of unproved reserves of dry natural gas. It is a clean source of energy comparatively coal and fossil fuel because it produces less amount of carbondioxide and other pollutants in the atmosphere so that's why the natural gas is less expensive and prefers in usage.
Describe the scientific explanations of the origin of life of Earth.
The scientific experiment on the origin of life on earth is according to the RNA world hypothesis, which is supported by many scientists, RNA rather than DNA was the earliest genetic molecule of life on Earth.
What is the origin of life on earth?The natural process through which life emerges from non-living materials, such as simple organic compounds, is known as abiogenesis or biopoiesis. Abiogenesis theories can be broken down into three basic stages: geophysical, chemical, and biological. Therefore, biogenesis, protobiogenesis, and biopoiesis are other terms for the origin of life.
Although the signature traits of living systems are explained by the creation of a self-replicating catalytic enzyme, the origin of the photobiological molecule itself is not explained.
Therefore, according to a scientific experiment on the genesis of life on Earth, RNA rather than DNA was the first genetic molecule of life on Earth.
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3. Which part of the digestive system compacts waste and makes vitamin K?
O the pancreas
O the liver
O the colon
O the stomach
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Where can you find the DNA in a eukaryotic cell? Where can you find the DNA in a prokaryotic cell?
Answer:
first question:The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms
:second question: The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane.
The development by gardeners of a new color in a rose through breeding is the result of
• artificial selection
•natural selection
•overproduction
•descent with modification
Answer:
Artificial Selection
Explanation:
How many chromosomes are in the gametes of an organism that has 88 chromosomes in its diploid cells?
Answer:
It is a worldwide universal truth that all living organisms produce gametes which comprised of a quasi or half number of Chromosomes in contrast to their inventive number of chromosome. Generally, in simple words, the gametes ploidy will be going halves on than the ploidy of the organism.
Ovum is the ‘female’ gamete which is truly the new-fangled individual of the species. It is basically, the solo cell in which disunion progression take place and baby will make. The ovum being single cell comprised of, ample chromosomes set. In humans Ovum chromosomes is 22 and one more X chromosome overall, making it 23 chromosomes. �The ovum required chromosomal set to become doubled and to the concert itself in the baby by development and cell division. This can be done once after when comprehensive and identical chromosomes of sperm combined with ovum after mating. Therefore, humans body cells comprised of 46 chromosomes.
Explanation:
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The most common protein produced by transgenic organisms is
Answer:
Genetic engineering is made possible by recombinant DNA technology. Organisms that have altered genomes are known as transgenic. Most transgenic organisms are generated in the laboratory for research purposes. For example, "knock-out" mice are transgenic mice that have a particular gene of interest disabled.
The most common proteins produced by transgenic organisms are albumin, fibrinogen, and human antithrombin.
What do you mean by Transgenic organisms?Transgenic organisms may be defined as those organisms in which foreign DNA has been introduced by recombinant-DNA technology with the help of plasmid vectors.
After inserting the foreign DNA, the host organisms produces several proteins which do not belong to their point of origin. Due to the expression of these proteins, recombinant-DNA technology has been used.
Therefore, the most common proteins produced by transgenic organisms are albumin, fibrinogen, and human antithrombin.
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What does the parasympathetic nervous system do?
A. Regulates the body in times of rest
B. Prepares a person for social situations
C. Responds to times of stress
D. Activates only when a person is scared
someone help me label this pls
A cacti is a type of xerophyte. Cacti have fewer stomata than other plants.
How is this an adaptation to survive in desert conditions?
A: It reduces loss of water.
B: It decreases the uptake of carbon dioxide.
C: It increases the uptake of carbon dioxide.
D: It increases the loss of water.
Answer:
It reduces loss of water.
Explanation:
The answer is simple as a plant such as cactus are found in deserts and as you know desert is a dry land of sand. So to survive a cactus has an anatomical and behavioural adaptation of absorbing and storing water, and one of them is preventing of loss of water.
What is true about discipline?
O It reacts to behavior
O It is about preventing misbehavior
O It is only for teens and adults
Olt rarely uses consequences for behavior
Answer:
2
Explanation:
preventing misbehavior
Name the legislation (pases in 1862) that led to the rapid development of the Great Plains/ Midwest? 
Answer:
The Homestead Act
Explanation:
The 1862 Homestead Act accelerated settlement of U.S. western territory by allowing any American, including freed slaves, to put in a claim for up to 160 free acres of federal land.
is there a relationship between earth's different climates?
The part of a seed that stores food for the seedling to use as it grow is _____
Answer:
Cotyledons
Explanation:
The parts of a seed that stores food for the seedling are the cotyledons.
Some plants have two cotyledons, but some only have one — these seeds are called "monocots".
Explanation for why it is necessary to water many potted plants at least once a day
plzz
Answer:
container grown plants dry out quickly and require more water than their backyard counterparts growing in open soil .. watering potted plants once a day or even twice daily may be necessary , especially if the weather turns hot and windy or your outdoor containers are located in full sunlight.
Explanation:
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What are things that tend to gain electrons and become negative
Explanation:
This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond. An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.
Is it possible to have a knockout mutant plant that shows no visible phenotype that is different from the wild-type plant?
Answer:
Molecular genetic approaches to the study of plant metabolism can be traced back to the isolation of the first cDNA encoding a plant enzyme (Bedbrook et al., 1980), the use of the Agrobacterium Ti plasmid to introduce foreign DNA into plant cells (Hernalsteens et al., 1980) and the establishment of routine plant transformation systems (Bevan, 1984; Horsch et al., 1985). It became possible to express foreign genes in plants and potentially to overexpress plant genes using cDNAs linked to strong promoters, with the aim of modifying metabolism. However, the discovery of the antisense phenomenon of plant gene silencing (van der Krol et al., 1988; Smith et al., 1988), and subsequently co‐suppression (Napoli et al., 1990; van der Krol et al., 1990), provided the most powerful and widely‐used methods for investigating the roles of specific enzymes in metabolism and plant growth. The antisense or co‐supression of gene expression, collectively known as post‐transcriptional gene silencing (PTGS), has been particularly versatile and powerful in studies of plant metabolism. With such molecular tools in place, plant metabolism became accessible to investigation and manipulation through genetic modification and dramatic progress was made in subsequent years (Stitt and Sonnewald, 1995; Herbers and Sonnewald, 1996), particularly in studies of solanaceous species (Frommer and Sonnewald, 1995).
0
1 pts
Which group consists of an example from each of the 4 organic macromolecules?
O enzymes, DNA, steroids, starch
O enzymes, carbon dioxide, water, oxygen
O enzymes, starch, carbon dioxide, steroids
O enzymes, water, steroids, oxygen ?
Eukaryotic cells and prokaryotic cells have some parts that are different. Which of the following would you find only in a eukaryotic cell?
A. membrane-bound organelles and a nucleus
B. a nucleus and organelles without membranes
C. a cell membrane and organelles without membranes
D. membrane-bound organelles and DNA in cytoplasm
Answer:
A
Explanation:
Answer:
A
Explanation:
Within a eukaryotic cell, each membrane-bound structure carries out specific cellular functions. Here is an overview of many of the primary components of eukaryotic cells.
Nucleus, Nucleolus, Plasma membrane, Cytoskeleton or cell wall, Ribosomes, Mitochondria, Cytoplasm, Cytosol, Endoplasmic reticulum, Vesicles and vacuoles.
What is the purpose of the pulmonary artery?
Answer:
Hey mate.....
Explanation:
This is ur answer....
Pulmonary circulation pumps deoxygenated blood through the pulmonary artery. This artery divides above the heart into two branches, to the right and left lungs, where the arteries further subdivide into smaller and smaller branches until the capillaries in the pulmonary air sacs (alveoli) are reached.
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how does dna replicate
How exactly did life begin?
Answer:
Rocks
Explanation:
life began at least 3.5 billion years ago, because that is the age of the oldest rocks with fossil evidence of life on earth. These rocks are rare because subsequent geologic processes have reshaped the surface of our planet, often destroying older rocks while making new ones.
what is propanone is used to remove varnish
Answer:
Acetone, a colorless liquid also known as Propanone, is a solvent used in manufacture of plastics and other industrial products.It is also used in nail polish removers and can remove most stains including varnish hope this answer helps
A high population of greater prairie chickens once inhabited the prairies of Illinois. The conversion of the prairies into agricultural land caused the chickens to lose their habitat. Studies have concluded that this change greatly reduced the greater prairie chicken population. The habitat loss also resulted in a decrease in the population’s genetic variation.
Which change in the gene pool occurred in the greater prairie chicken population?
gene mutation
gene flow
genetic drift
genetic resistance
The answer is C. genetic drift
Genetic drift affects the population size and decreases genetic variability by setting some alleles and losing others. Option C. The exposed example is a case of genetic drift - bottleneck effect -.
What is genetic drift?
Genetic drift is an evolutive force. It refers to the random change that occurs in the allelic frequency of a population through generations.
The magnitude of this change is inversely related to the size of the original population.
These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic variation in the population decrease.
Genetic drift affects a population and reduces its size dramatically due to
a disaster or pressure ⇒ bottleneck effectthe population split ⇒ founder effect.The exposed example is a case of the bottleneck effect. The conversion of the prairies into agricultural land and the consequent habitat loss is the pressure acting on this prairie chickens population. The population decreases in size and decreases its genetic variation.
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Most sex-linked genes are located on:
Answer:
either the x or y chromosomes
pls help me pls pls pls
Answer:
Que carajos es eso que feo
Explanation:garras
Answer:
prokaryotic cell
Explanation: