Answer:
Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).
Verdadero o falso mediante el genotipo podemos determinar si existen dominancia en una característica
Answer:
Verdadero
Explanation:
Sabemos que los caracteres dependen de los genes. Y los genes pueden presentarse en forma de alelos dominantes, o alelos recesivos. La expresión de los alelos recesivos son enmascarados o escondidos por el alelo dominante. Es decir, que si ambos alelos se encuentran juntos en un heterocigota, solo el alelo dominante se expresará.
Entonces el alelo dominante expresa la característica que resulta dominante, mientras que el alelo recesivo expresa la característica recesiva.
Genotipo:
Homocigota dominante ----> Expresa caracter dominante (Solo el alelo dominante esta presente)Heterocigota -------------------> Expresa el caracter dominante (Ambos alelos estan presentes, pero el dominante es quien se expresa)Homocigota recesivo --------> Expresa el caracter recesivo (solo alelos recesivos estan presentes)Por ejemplo, si tenemos dos fenotipos rojo y amarillo, y sabemos que el color esta codificado por un gen dialelico llamado M. También supongamos que no sabemos qué alelo expresa qué color. Teniendo solo estos datos, no podemos decir si el rojo es el color dominante o si el amarillo lo es.
Sin embargo, si tenemos los siguientes genotipos acompañando esta información:
MM--> AmarilloMm--> Amarillomm --> RojoRecién ahora podemos deducir que el caracter dominante es el amarillo.
If both the biceps and triceps muscle contract at the same time, what happens?
Answer:
when one muscle is contracted, the other muscle from the pair is always elongated. for example, the biceps and tricep muscles work together to allow you to bend and straighten your elbow. when you want to bend your elbow, your bicep muscle contracts. and at the same time tricep muscles relaxes.
Explanation:
Hope this helped Mark BRAINLIEST!!
Bob thinks that plants get their materials for growth from the soil. Write a couple of sentences to explain why is Bob incorrect.
The quantity of matter in an object is a measure of its:
matter
inertia
mass
atoms
Answer:
the answer is C or mass
Explanation:
Answer:
MAss
Explanation:
after leaving the proximal convoluted tubule, filtrate drains into
Brownmans capsule
Distal convoluted tubule
Descending loop of Henle
Ascending loop of henle
Answer:
I think the answer is distal convoluted tubule
Answer:
descending loop of henle
what are three things that an ecological pyramid shows that food webs
and food chains do not show.
Answer:
An ecological pyramid shows energy flowing through different ecosystems, the amount of energy that is being passed down, and the amount of organisms.
Explanation:
The three things that are not displayed by food chain and food web but showed by ecological pyramid are;
Energy flowing through different ecosystems.
Amount of organisms.
Amount of energy that is being passed down.
An ecological pyramid can be regarded as graphical representation that display relationship between different organisms in an ecosystem.The trophic levels in this ecological pyramid contains amount of organisms as well as mass which is biomass and the amount of energy that can be found in each level.Therefore, it shows the energy flowing through different ecosystems.
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What is karotyping and how is it used in science / medical field??
Answer:
Karotyping is a chromosomal analysis. It can be used to look for diseases caused by irregularities in the chromosomes, such as Down syndrome.
Explanation:
Karotyping is a chromosomal analysis of the chromosomal constitution of the nucleus of a cell, which is equal to the complete chromosomal makeup of a person. The chromosomes of each species have a certain structure both in size, shape and their own band when they are stained in the laboratory. This allows them to be identified as well as to know if all the genetic information is in the correct order. In addition to numerical abnormalities in chromosomes, structural alterations mean that certain chromosomal regions can be duplicated or even absent. This gain or loss of genetic material has highly varied consequences depending on the genes involved. Another type of structural alterations are translocations and inversions. The karyotype can be studied in search of diseases caused by irregularities in the chromosomes, such as Down syndrome. It also helps to identify problems that a baby conceived through assisted reproduction may have when it is born, by extracting the karyotype that is found in the amniotic fluid of the embryo.
PLS HELP ME AND U WILL BE MARKED BRAINIEST
A
The reason for this answer is because this is the only answer that helps in some way while the other answers don't help any aspect of moving into a household.
Cystic Fibrosis is an autosomal recessive disorder. Neither parent has the disease. Their first child (Joey) Has cystic fibrosis. What is the genotype of the both parents? Use the letter A for the alleles for cystic fibrosis.
Answer:
Explanation:
br.uh quit spamming this question
What decreases in the water when algae grow quickly?
Answer:
Fish and other insects
Explanation:
Hope that helps
The diagram below represents an energy pyramid constructed from data collected from an
aquatic ecosystem. Which statement best describes this ecosystem?
A.The ecosystem is most likely unstable.
B.The herbivore populations will continue to increase in size for many years.
C.Long-term stability of this ecosystem will continue.
D.The producer organisms outnumber the consumer organisms.
Energy pyramids are the models that show the flow of energy from the primary to the next level. From the energy pyramid, it can be said that long-term stability will be continued. Thus, option C is correct.
What are energy pyramids?Energy pyramids are the representation of the energy levels and the primary producers and other consumers. The producers are the base of the pyramid followed by the primary consumers.
In an aquatic ecosystem, the algae are the primary producers that provide energy to plankton and act as primary consumers. These are get eaten by small fishes and large fishes. The number of consumers gets decreased as one rises to the upper level.
Therefore, option C. an aquatic ecosystem will have stability.
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Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?
The pancreas has both endocrine and exocrine functions.
The pancreas regulates blood sugar concentration.
The pancreas triggers the development of secondary sex characteristics.
The pancreas helps digest fat, protein, and carbohydrates.
Answer:
C. The pancreas triggers the development of secondary sex characteristics
Explanation:
Edge 2021
The statement in Heather’s report was not accurate C. The pancreas triggers the development of secondary reproductive characteristics.
What are the different pancreas digestive enzymes?The pancreas secretes digestive enzymes in the slender instincts, these enzymes produce endocrine secretions through the hormones and pass through the blood.
Endocrine cells called pancreatic islets secrete insulin and glucagon and have endocrine functions that are formed through the hormones and pass through the bloodstream.
Thus, option "C" is correct.
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Thinking about the process of meiosis, how do you think it is possible for gametes to end up with too many or too few chromosomes?
Through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.
What is Meiosis?Meiosis is defined as the specialized type of cell division of germ cells in sexually-reproducing organisms that produces gametes such as sperm or egg cells. This involves two rounds of division which eventually result in four cells with only one copy of each chromosome.
This is called reduction division because the number of chromosomes in the daughter cells becomes half that of the parent cell. For example, a human cell has 46 chromosomes, but the egg and sperm cells produced as a result of meiosis have 23 chromosomes.
If chromosomes split unequally, an egg or sperm may end up with too many or too few chromosomes; when one of these participates in fertilization, the embryo may end up with too many or too few chromosomes.
Thus, through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.
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Pollutants can enter a body of water at a specific, identifiable location.
Which term describes this type of pollution? *
inorganic wastes
biological pollutants
point-source pollution
nonpoint-source pollution
Answer:
C
Explanation:
it is called point because the source can be identified
what type of organisms contains plasmid DNA
Answer:
archaea and eukaryotic organisms
Explanation:
In nature, plasmids often carry genes that may benefit the survival of the organism, for example antibiotic resistance.
Answer:
archaea and eukaryotic organisms
Explanation:
4. Which of the following is NOT true of the digestive system? a. The stomach contains acids to break down food b. Digestion begins with enzymes in the stomach c. The large intestine absorbs water from the digestion of nutrients d. The small intestine does most of the absorption of nutrients
Answer:
B. Digestion begins with enzymes in the stomach
Explanation:
The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.
Explain how the information from stimuli can become a memory or result in a behavior. WILL GIVE BRAINLIEST IF CORRECT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: look at the picture
Explanation: Hope this help :D
Answer:
I tried it for the person above me and it worked Thanks!!
Explanation:
what do ducks and snake have in common.
Answer:
they both can see behind them
Explanation:
Structure of plant cell
Answer:
A cell wall, a broad central vacuole, and plastids such as chloroplasts are all present in plant cells. The cell wall is a dense layer that covers the cell and provides structural support and protection. It is located outside the cell membrane. The turgor pressure against the cell wall is maintained by the central vacuole.
Explanation:
In the sporophyte plants produce ________________________?
Answer:
spores
Explanation:
plant body grows and eventually produce spores through meiosis.These spores divide mitotically to produce haploid (having a single set of chromosomes)
1. Which of the following serves as the passageway of eggs from the ovary to
the uterus?
a. Vagina
b. Uterus
c. Oviduct
d. Ovary
Answer:
in a human? its D or C...
Explanation:
5. In a rainforest, giant trees normally live for hundreds of
years. However, when they do die and fall to the ground,
hundreds of seedlings will compete to take its place. What
adaptation is most necessary for a young tree to mature in
this environment?
A. The ability to grow vertically at a rapid rate
B. The ability to establish a deep root system while
growing at a slow and steady rate
C. The ability to retain water to survive in drought
D. The ability to grow narrow, small leaves
Answer:
b
Explanation:
i think im right
What molecule is used to find the direction of each DNA strand?
Answer:
5' to 3'
Explanation:
Answer:
Only the 5' to 3' path of DNA is synthesized. If you know the sequence of the template strand, you can figure out the complementary strand's sequence. Each base in one strand adheres to its partner in the other.
Explanation:
Hope this helps!
Please mark me as Brainliniest.
If Petal color was a complete dominant trait (A being red petals and a being white), what percent.
of offspring would be red?
hito what percentage of offspring would be red?
Answer:
75%
Explanation:
3/4ths are dominant, so 75% will be red.
Answer:
75%
Explanation:
Select the correct answer.
The Punnett square for a sex-linked trait is shown. The recessive trait is carried only by the X chromosome. Xr is the recessive allele. Based on the Punnett square, which statement is true?
Xr X
X XrX XX
Y XrY XY
A.
Female offspring have a 50 percent chance of expressing the recessive trait.
B.
Both male offspring will express the recessive trait.
C.
Both female offspring will express the recessive trait.
D.
There’s a 50 percent chance the male offspring will express the recessive trait.
Answer:
D. There's a 50% chance the male will express the recessive trait
Explanation:
Because X is dominant over Xr, a female could not express it in this punnett square because she will have the extra X chromosome. While males do not have the extra X so if they receive the Xr they will have nothing to "cover" them.
Answer:
d i just took the test
Explanation:
please help meh i will give brainliest
Answer:
Power has to travel a long distance over power lines to reach cities. Because there is no power plants.
Explanation:
Please tell me if I am wrong! good luck!
Answer:
It is expensive because of the pole and the generator you would have to build.
Explanation:
What is it called when one organism imitates the features or behavior of another?
Answer:
Mimicry
Explanation:
Mimicry is an evolved similarity ( in traits and behaviors ) , often between two organisms
An example of mimicry is the resemblance between coral snakes and kingsnakes. A kingsnake is a harmless snake whereas a coral snake is a fairly venomous snake. A kingsnake looks similar to a coral snake ( mimics its features) leading to kingsnake predators often intimidated by the kingsnakes appearance, because like stated before coral snakes are venomous and kingsnakes mimic their features.
Answer:
Mimicry is the similarity of one organism (the mimic) to another (the model) that enhances the mimic's fitness through its effect on the behavior of a third party, the operator.
Explanation:
a close and long-term biological interaction between two different biological organisms, be it mutualistic, commensalistic, or parasitic.
Cell division is not only for generating copy of DNA . Why ?
Answer:
sorry don't know sorry
Explanation:
ok
Answer: During every cell division, a cell must duplicate its chromosomal DNA through a process called DNA replication. The duplicated DNA is then segregated into two "daughter" cells that inherit the same genetic information. ... Healthy cells can perform DNA replication with almost absolute accuracy most of the time.
Which phylum reproduces asexually through budding?
Answer:
Hydra
Explanation:
The correct answer is - Hydra
Reason -
Budding: Hydra reproduce asexually through budding, where a bud forms that develops into an adult and breaks away from the main body.
True or False? Organ systems work in isolation and do not work with other organ systems.