Answer:
- The building blocks of DNA molecules are amino acids. False
- DNA molecules contain a 5-carbon sugar called deoxyribose. True
- The nitrogen bases found in DNA molecules include adenine, cytosine, guanine, and thymine. True
Explanation:
The building blocks of the deoxyribonucleic acid (DNA) are nucleotides, while amino acids are the building blocks of proteins. Each nucleotide consists of one of four possible nitrogenous bases: two purines (i.e., adenine and guanine) and two pyrimidines (i.e., cytosine and thymine). In DNA, each nucleotide consists of one of these four nitrogenous bases, a five-carbon sugar molecule (called deoxyribose), and a phosphate group. The DNA molecule has a double-helix structure, where nitrogenous bases are inside the double helix while sugars and phosphates are outside. In DNA, cytosine always pairs with guanine and thymine always pairs with adenine.
100pts!!! PLEASE HELP quickly!!
1. For today’s weather, it’s up to you to decide where the fronts are located. Draw the fronts on the map. Explain your reasoning.
As per the weather map of north America the regions of high and low pressure are given along with the cloudiness and range of temperatures
The warm and fold fonts are affected by the cloud covers and hence affect the temperature of the region. The cold front will be along the borer of 40 and 50°. The northeastern region shows maximum cloud cover and a low pressure. As compared to the western and southern region have have high temperatures and experienced high pressure. The winds will below from the high pressure to low pressure and hence create instability cover the north eastern parts.Hence the fronts are located north east and central zone.
Learn more about the For today’s weather, it’s up to you to decide where.
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Large multicellular organisms are made of a wide variety of cell types. Do
all of the types of cells pass through the cell cycle at the same rate? *
1 point
Yes. All of the cells divide at approximately the same times throughout the life of the
organism.
Yes. All of the cells divide at approximately the same rate, although they may divide at
different times.
No. Some specialized cells, such as skin cells, divide much more rapidly than other
specialized cells
No. Some specialized cells, such as skin cells, divide much more slowly than other
specialized cells.
Answer:
Yes, All of the cells divide at approximately the same rate, although they may divide at different times
Those organisms which are made up of more than one cell are called multicellular organisms.
These are a few examples of multicellular organisms:-
PlantsAnimalsFungiMulticellularity helps them to perform various work at the same time. To maintain the same number of cells in an organism, its body starts cell division.
It is not necessary for the host to divide all the cells at the same time.
Hence the correct option is Yes. All of the cells divide at approximately the same rate, although they may divide at different times.
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what do you call the reproduction in plants where the male and female parts of the flowers of the plants are involved?
A.asexual
B.budding
C.pollination
D.sexual
Answer:
your answer would be d. sexual
A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All the F1 had lacerated leaves. Two F1 plants were interbred to produce the F2. Of the F2, 249 had lacerated leaves and 16 had normal leaves. Give genotypes for all the plants in the F1, and F2 generations. Explain how lacerate leaves are determined in the opium poppy. (Section 5.2)
Answer:
The correct answer is-
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
2. Two genes, with a dominant allele at either or both loci.
Explanation:
The given information gives THE following data:
Dominant: Lancerate leaves - AABB
Recessive: normal leaves - aabb
F1 has - all Lacerated leaves - AaBb
F2 by selfing F1:
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94
And normal 1/16 = 0.062 is almost same as 16/265 = 0.060
Thus, the genotypes of -
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
It is said that it is the male who determines the sex of the baby rather than it is the female. From your knowledge of the sex chromosome, is it true?
Answer: yes because they have xy chromasomes so they have to give one of them
Explanation:
The number of protons plus neutrons in an atom, represented as an average of all naturally occurring forms of the element, is known as_____
What is a tumor? *
a mass of cancer cells
O a defective p53 gene
An accumulation of cyclins
O the rapidly dividing cells found at the site of a wound
Answer:
i think it is.. a mass of cancer cells
Explanation:
A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to
give up on testing the hypothesis.
test the hypothesis for a very long time.
develop new methods to test the hypothesis.
find a way to make humans reproduce faster.
Answer:
answer is B
Explanation:
its on edg
Answer: C. develop new methods to test the hypothesis.
Explanation:
Which of the following is a characteristic of the plasma membrane? It is made up of one layer of phospholipids. It doesn't contain any molecules aside from phospholipids. The outward-facing phospholipid tails give it a rough quality. It allows some molecules to pass through but prevents others from doing so.
Answer:
It allows some molecules to pass through but prevents others from doing so.
Explanation:
How humans use Nitrogen and phosphorus to make more food?
A. Dog foods
B. Fuels
C. Fertilizers
D. Cars
Answer:
C. Fertilizers
Explanation:
What are the structural differences between a cockroach and a grasshopper?
Cockroaches have legs for crawling on walls and ceilings, but grasshoppers have legs for jumping. Some cockroaches have wings for flying, but most others don't. Grasshoppers have wings for making a sound, whether it's to attract a mate or to just be annoying. Grasshoppers have a body that is split into multiple segments (more than just one), while cockroaches have only like 2 body segments. Cockroaches have barbs on their legs for a sense of touch, while grasshoppers don't. The legs of a cockroach are very sensitive though. Cockroaches can survive a nuclear explosions because the rads don't affect them. But the heat from the nuclear blast will certainly kill a human, as well as a cockroach if exposed. Obviously, grasshoppers couldn't survive a nuclear explosion. The only down side to roaches surviving a nuclear explosion is them turning into radroaches, like in the Fallout game series from the game developing company, Bethesda Game Studios! If there were a nuclear explosion, then the roaches would mutate into human head sized roaches that can actually attack a human! (this is just a theory, not scientifically proven, lol)
I hope this helps you even a little bit, have a great day.
Sparrows produce an average of 5 eggs in each clutch. If there are more than 5. Parents can't adequately feed the young. if there are fewer. Predators may destroy the entire clutch. Which type of selection is this
Answer: it would be natural selection
Explanation:
Explain how to revise the following DNA model to form mRNA
AACCTGGGACTATGAT
Which of the following statements about the ice ages is true? a. An ice age will never come again. b. The causes of ice ages are well known. c. During the ice ages, icy glaciers covered much of the continents. d. There were no living organisms during the ice ages.
Answer:
C
Explanation:
its a fact and in Biology we take facts over expectations
Why do you think that it is important for health care workers to have corona virus vaccine?
Yes, I think it is essential for health care workers to receive the coronavirus vaccine. Health care workers, such as doctors and nurses, help patients with and without the virus. I believe that all health care workers should be vaccinated for their own health and their patients' health.
Please what's an ecosystem
ECOSYSTEM:
Ecosystem is the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space.
Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services
Answer:
All of the choices are ecosystem services.
Explanation:
Trees' roots hold soil down so it doesn't move everywhere and they recycle carbon into oxygen. In addition, they provide us wood and beautiful wildlife!
Have a great day!
The ecosystem services are all the benefits provided by the ecosystem to human. Otion A) habitat for wildlife is not an ecosystem service.
What are the Ecosystem Services?
When talking about ecosystem services, we are referring to the goods and services offered by ecosystems to human populations
There are different types of ecosystemic services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing.
Among them, we can mention food, clear fresh-water, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, and others.
Regulation:Refers to ecological processes that improve life.
Among others, we might mention climate regulation, CO₂ absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil formation and fertility maintenance, nutrient cycling, waste recycling, pests/plagues control, etc.
Cultural:Refers to the benefits that are not material.
Ecosystems also provide a recreational place or area to spend time, learn. They are a spiritual/religious space, a source of inspiration. They are considered to be cultural patrimony and the source of scientific knowledge.
Among th options, the one that is not a ecosystemic service is option A) habitat for
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.
What’s one indirect consequences of building Seawalls
Answer:
The shoreline Habitat is destroyed through loss of sand.
Explanation:
is x male or female in cell reference
Answer:
An XY chromosome will be a male chromosome pair.
An XX chromosomes will be a female chromosome pair.
7. Explain how the equations for photosynthesis and cellular respiration compare.
Answer: In Photosynthesis, carbon dioxide and water is yielded to glucose and oxygen. In respiration, glucose and oxygen is yielded to carbon dioxide and water. C6H12O6 (glucose) + O2(oxygen) → CO2(Carbon Dioxide) + H2O(water) + ATP energy. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis: Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O. Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O.
Explanation:
A donkey and a horse can be mated to produce a mule, but mules are sterile and cannot have
offspring. Infer whether donkeys and horses should be considered the same species. Explain
your answer using textual evidence.
Answer:
But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs. They have trouble making sperm or eggs because their chromosomes don't match up well. ... A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes
Answer:
But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs. They have trouble making sperm or eggs because their chromosomes don't match up well. ... A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes.
Explanation:
White flower color is recessive to purple flower color in pea plants. If a pea plant has white flowers, what is
the genotype and phenotype of the pea plant
Answer:
An organism's genotype is its specific combination of alleles for a given gene. So, for example, in the pea plants above, the possible genotypes for the flower-color gene were red-red, red-white, and white-white. The phenotype is the physical manifestation of an organism's allelic combination (genotype).
Explanation:
hope this helps sorry if it doesn't have a good rest of your night :) ❤
The genotype and phenotype of the pea plant - pp - white flower
According to Mendel, there are two or more alleles (normally two) are responsible for the expression of a trait encoded by the gene.
One allele of the particular gene has the ability to mask the phenotypic expression of the other if present in a genotype together.The allele that masks another is called the dominant allele while the allele being masked is the recessive allele.The recessive allele express their effect only if they are present with the same allele in the genotypeIn this case, a gene that codes for flower color in pea plants is involved.The purple allele (P) is dominant over the white allele (p).It is given that the pea plant has white flower color that is a recessive allele therefore, it is clear that it has two recessive alleles p in its genotype.Thus, the genotype and phenotype of the pea plant - pp - white flower
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14
Hemophilia is a recessive X-linked disorder. The term "carrier" can be used when explaining someone's genotype
for hemophilia. Which of the following is the correct term for carrier?
Answer:
petr moto seti pert hello met rein
Explanation:
perteyhsj
The green machines within a plant are the blank.
Lysosomes chloroplasts mitochondria
The top layer of the soil in the diagram is composed MAINLY of
A)
sand and clay.
B)
solid bedrock
C)
many types of minerals.
D)
decaying organic material.
Answer:
?
(there is no diagram)
all life would come to an end if there are no green plants.
Explain
Answer:
So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.
Explanation:
In prokaryotes, certain proteins act to regulate genes by binding to DNA. What could be the effect of these binding proteins?
Answer:
increase/reduced transcription of those genes
Explanation:
protein binds either allowing or preventing transcription
Put these in order from least to greatest amounts of energy made.
= Aerobic respiration
= Fermentation
= Glycolysis
Answer:
respiration makes the most (38 ATP) and the other 2 are if not the same at least very similar both release 2 ATP 2 NADH and 2 pyruvate
Explanation:
Humans should consider microbes as beneficial organisms for all of the following reasons except:
Group of answer choices
they purify water in the hydrosphere.
they consume carbon dioxide during photosynthesis.
they decompose organic waste in the geosphere.
they generate oxygen in the hydrosphere.
they filter ultraviolet radiation in the atmosphere.
Answer:
they purify water in the hydrosphere
Microbes are beneficial as well as detrimental to the environment. They do not purify water in the hydrosphere instead pollute them. Option (A) is correct.
How does microbes affect water quality ?The quantity and variety of native microorganisms in an aquatic environment have a significant impact on water quality .
Physical, biological, and chemical contaminants from human activity can build up in aquatic systems and have significant ecological effects that can be detrimental in nature.
Microbial activity in the aquifer may have an impact on a number of ground-water quality indices, including pH, oxidation/reduction (redox) status, dissolved oxygen, or the presence of certain mineral components. This is especially true if there are elements in the aquifer that bacteria may use to flourish.
Therefore, option (A) is correct option.
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77 POINTS, PLEASE HELP ASAP
1): Lily is dressing up as a chicken for Halloween this year and is flapping her arms like a bird as she walks from house to house. As Lily flaps her arms down to her sides, what type of movement is occurring?
2): Katie loves pretending that she’s a human cannonball. As she jumps off the diving board, she assumes the proper position before she pounds into the water: head and thighs tucked against her chest; back rounded; arms pressed against her sides while her forearms, crossed in front of her shins, hold her legs tightly folded against her chest. What movement term would best describe the positioning of Katie’s vertebral column, head, thighs, lower legs and lower arms? HINT: She is about as far from the anatomical position as she can get.
Answer:
1. abduction & abduction
2. flexed
