Answer:
the answer is independent assortment
In which process do homologous chromosomes pair up?.
Answer: prophase I
Explanation: During prophase I, homologous chromosomes pair up and exchange sections of DNA. This is called recombination or crossing over. This is followed by metaphase I where the connected pairs of chromosomes align at the middle of the cell. After the pairs of chromosomes are aligned, anaphase I begins.
At which stage in an animal's life cycle does it form a zygote?
A. Before gametes fuse
B. After fertilization
C. After development is complete
D. Before sperm and egg cells form
Answer:
B. After fertilization.
Explanation:
It's the process where the sperm and egg fuses to form a zygote.
In a specific species of frog, the allele for green coloration is dominant over the allele for brown skin coloration. The original population contains 28 HH frogs, 52 Hh frogs, and 20 hh frogs.
At the start of the experiment, the researchers remove all hh frogs from the population.
Calculate the frequency of the recessive allele in the remaining population.
Based on the data provided and the Hardy-Weinberg equilibrium equation, the frequency of the recessive allele in the population is 0.53.
How can the allele frequency be determined?The allele frequency can be calculated from the Hardy-Weinberg equilibrium equation.
The Hardy-Weinberg equilibrium equation is given as:
p^2 + 2pq + q^2 = 1 andp + q = 1where:
p = frequency of the dominant allele in the populationq = frequency of the recessive allele in the populationp2 = percentage of hom0zygous dominant individualsq2 = percentage of hom0zygous recessive individuals2pq = percentage of heterozygous individualsTotal population of frogs = 100
percentage of hom0zygous recessive individuals, q^2 = 28/100 = 28%
Frequency of the recessive allele in the population is calculated as:
[tex]q = \sqrt{ {q}^{2} } [/tex]
[tex]q = \sqrt{0.28} [/tex]
q = 0.53
Therefore, frequency of the recessive allele in the population is 0.53.
Learn more about allele frequency at: https://brainly.com/question/4393505
Which trophic level in a food web contains the most energy?.
Answer:
Producers
Explanation:
This is because producers make their own food from sunlight. This sunlight supplies producers with tons of energy.
A mutation that involves the addition, subtraction, or substitution of a single base is known as.
inversion
mutation that involves the addition, subtraction, or substitution of a single base is known as an inversion. polypoloidy. a chromosomal aberration.
Answer: a point mutation
Explanation: During transcription the DNA sequence of a gene is copied into a RNA molecule by: RNA polymerase.
Which vein originates on the medial foot and empties into the femoral vein?.
Answer:
The great saphenous vein originates on the medial foot and empties into the femoral vein.
Explanation:
Would the coupling of the processes shown below be found in a eukaryotic cell? explain why or why not. A diagram of transcription and translation in a eukaryotic cell. Four rna polymerases located one after another in short distances transcribe a strand of dna in the direction from left to right. A polyribosome, comprised of several ribosomes, is attached to every rna polymerase. Each ribosome is located on the mrna strand like beads and translates mrna into polypeptides. The 5 prime end of mrna does not contain any ribosomes and is the first to appear during transcription. Drag the terms on the left to the appropriate blanks on the right to complete the sentence.
Polyribosomes are groups of ribosomes linearly arranged, associated with mRNA, and producing several copies of proteins. The coupling of processes shown in the image can not be found in eukaryotic cells.
What is a polyribosome?
A polyribosome is a group of single ribosomes associated with an mRNA molecule and producing simultaneous translation events of the same protein.
Polyribosomes can be found in both prokaryotic and eukaryotic cells. However, translation occurs at different moments and places in these cells.
⇒ In a prokaryotic cell
Polyribosomes can act before transcriptional termination occurs.
While transcription is still happening, ribosomes can produce many polypeptide copies.
This is because
both transcription and translation occur in the cytoplasm simultaneously. transcription and translation directions are 5' to 3'. mRNA does not need to be modified after transcription.⇒ In eukaryotic cells
Polyribosomes are found in the cytoplasm but only when
the transcription process is over,the mRNA molecule is already modified and left the nucleus.Since transcription occurs in the nucleus and translation in the cytoplasm, they can not be simultaneous.
According to this information, the coupling of processes shown in the image can not be found in eukaryotic cells.
You can learn more about eukaryotic and prokaryotic translation at
https://brainly.com/question/13261547
https://brainly.com/question/16985142
Which biological theory of aging postulates that by-products of cell metabolism may damage and cause mutations in cells
The Free Radical Theory of Aging is a biological theory that postulates that by-products of cell metabolism may damage and cause mutations in cells. These toxic agents are free radicals.
What is the Free Radical Theory?The Free Radical Theory of Aging is a theory posing that free radicals are generated as a natural consequence of age.
This model indicates that oxidative damage induces random mutations that are associated with the negative effects of aging.
The oxidative damage is especially concentrated in the mitochondria (mitochondrial DNA or mtDNA).
Learn more about the Free Radical Theory here:
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under what conditions would you adjust the diaphgram?
Answer:
I would adjust it so it is farther away so that it will be able to draw in more air.
Explanation:
What phase of Mitosis is shown in Image A?
Answer:
i think it is meta phase
Explanation:
so as you can see in the attachment i put under this the second phase is the closest ( i took this lesson years ago so i had to make sure by searching it up) + hope this helps
Excretion is best described as the removal of
1.
metabolic wastes from a cell
2.
toxic wastes by the process of cyclosis
3.
water molecules from dipeptide hydrolysis
4.
undigested material from the digestive tract
Answer:
1.Metabolic wastes from a cell.
Explanation:
Describe two integumentary system mechanisms that help regulate body temperature.
Answer:
dilation of vessels and sweating
Explanation:
The vast blood supply of the skin aids in temperature regulation: dilated vessels enable heat to escape, while constricted vessels retain heat. The blood supply of the skin regulates body temperature. The skin aids in the maintenance of homeostasis. Humidity has an effect on thermoregulation because it reduces perspiration evaporation and, as a result, heat loss.
What are organisms trying to get by feeding?
Answer:
Living things feed. Food is the material from which organisms through respiration obtain the energy required to sustain life and carry out all the other defining functions of living things. Food also provides the raw materials for growth and repair.
Explanation:
they are trying to get energy by feeding and also gain in nutrients
What is always produced in the combustion of organic material.
Answer:
“Combustion always produces carbon dioxide and water”
Explanation:
Water and Carbon dioxide are always produced in the combustion of organic material.
What is combustion of organic material?Combustion involves the oxidation of the carbon in an organic molecule. The fuels that are burned on a large scale to provide energy for heat or electricity include the fossil fuels.
The combustion of organic fuels is a chemical reaction that results in the generation of products and heat. The nature of the process is controlled by heat and mass transfer and can result in very different forms of combustion.
Complete combustion needs a plentiful supply of air so that the elements in the fuel react fully with oxygen. Fuels such as natural gas and petrol contain hydrocarbons. These are compounds of hydrogen and carbon only.
Learn more about combustion of organic material, refer:
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#SPJ2
what percentage of the offspring will express the dominant trait?
A. 25 % B. 50 % C. 75 % D. 100 %
Answer:
it is 25%
Explanation:
for a parents to be transmitted
The
acts like a wall to keep out germs?
Transverse waves are made up of parts called?
Define the word species
The term "survival of the fittest' means
A. The strongest organism will survive.
B. Natural variation among organisms causes more offspring being produced by one set of parents.
C. The strongest, fittest predator will survive
D. Natural variation among organisms causes some to survive and reproduce more than others.
Please help me
how you describe a noun the text
Answer:
A noun is a word that refers to a thing (book), a person (Betty Crocker), an animal (cat), a place (Omaha), a quality (softness), an idea (justice), or an action (yodeling). It's usually a single word, but not always: cake, shoes, school bus, and time and a half are all nouns.
Explanation:
What is the function of chloroplast in eukaryotic cells?.
Answer:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.
What is the difference between cellular and internal respiration?.
Answer:
Internal respiration occurs in the respiratory membrane of metabolizing tissue. Inside the mitochondria, cellular respiration, which produces energy in the form of ATP, occurs. Cellular respiration requires oxygen and carbon dioxide is produced as a waste.
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In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden.Allele Frequency for Flower Color in Peas
Generationpq10.60.420.70.330.80.2
Which statement is a conclusion that may be drawn from the data in the table?
A. Generation 1 has more white flowers than generation 2.
B. Generation 3 has more white flowers than generation 2.
C. Generation 2 has fewer purple flowers than generation 1.
D. Generation 1 has fewer purple flowers than generation 3.
Answer:
Generation 1 has fewer purple flowers than generation 3 is correct
Explanation:
Finished the test with 100
When we focus on the visual information we need in daily life and relegate the remaining information to the background, what are we practicing
Answer:
We need to focus on what to archive in life in order for you to be a great person
The esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that is ..............................
Answer:
basic on the pH scale, medications such as Pepcid and Tums with high calcium concentrations. The high pH counterbalances the acid.
Explanation:
What process is used by prokaryotes to obtain some materials and remove waste?.
Answer:
In order to obtain some materials and remove waste, what process is used by prokaryotes? Diffusion. The changes in the concentration help the movement of the particles and waste across the plasma membrane. This process is known as diffusion, where molecules move from high to low concentration.
Explanation:
Why is it ecologically relevant for plants to have their seeds dispersed.
Answer:
It's because it allows plants to be spread out in a big / wide area and to avoid competing to another with the same resources.
Explanation:
The neurotransmitter at the neuromuscular junction is:.
Answer:
Acetylcholine (ACh)
Explanation:
Let me know if you actually need a better explaination ^^
The best known location of Petrified wood: _____
Siberia
Italian island of Sicily
Baltic Sea
Gobi Desert, Mongolia
A National Forest in Arizona
Cumberland, Maryland
Answer:
A national forest in Arizona
Explanation:
There is a national forest in Arizona, known as the Petrified Forest National Park, that contains a lot of petrified wood.
why and how should we conserve rare plants and animals?
Explanation:
We should conserve rare plants & animals because :
It is essential for the conservation of plants. The causes of destruction of natural habitat are haphazard collection of forests products, over-grazing, clearing the forest and fire on forest. The control and proper management of these activities helps to control the natural habitat.
We can conserve them by :
Stopping hunting
Land development or making parks and reserves.
