Answer:
Uno de los progenitores es heterocigoto para color naranja (Nn) y el otro parental es homocigoto recesivo para gris (nn). Al haber una cruza entre un homocigoto recesivo y un heterocigoto, la 50% de la progenie expresa color naranja (Nn), mientras que el otro 50% expresa color gris (nn).
Explanation:
Datos disponibles:
Cruce entre peces naranjas y peces grises50% de la F1 son peces grisesNaranja dominante sobre grisPodemos nombrar el alelo dominante para color naranja N, y al alelo recesivo para color gris n.
Para que en un cruce entre dos fenotipos distintos, el 50% de la primer camada exprese uno de estos fenotipos, entonces uno de los parentales debe ser heterocigoto, mientras que el otro parental debe ser homocigoto recesivo. De esta forma 50% de la primera generación expresara uno de los fenotipos, mientras que el otro 50% expresará el otro fenotipo.
Supongamos que uno de los parentales lleva el genotipo Nn, y el otro parental es nn.
Cruce:
Parental) Nn x nn
Gametas) N n n n
Fenotipos) Naranja Gris
Cuadro de Punnett) N n
n Nn nn
n Nn nn
F1) 2/4 = 1/2 = 50% de la progenie tendrá genotipo heterocigoto, Nn
2/4 = 1/2 = 50% de la progenie tendrá genotipo homocigota recesivo,
nn
50% de la progenie será color naranja (Nn)
50% de la progenie será color gris (nn)
HELPPP!!! ASAPPP!!!!
What is the importance of the amniotic egg?
Answer:
The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.
Hopes this helps :)
Which description properly describes the plant structures involved in photosynthesis
Answer:
Stomata take in water, sunlight, and carbon dioxide and release oxygen. Phloem transports water, stomata take in carbon dioxide, and chlorophyll absorbs sunlight. Xylem takes in water, sunlight, and carbon dioxide and releases oxygen.
Answer:
Sorry, but I don'y know
Explanation:
what are infectious agents?
A. agent that investigates different types of infection
B. attackers that can cause a response by the immune system
C. attackers that cannot cause a response by the immune system
D. infectious agents are always good for the human immune system.
what is the answer please let me know asap
Answer:
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. pls mark brainliest plz plz
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
Heeeeeellppp plzzzz
Answer:
C. They have trouble moving materials in and waste products out
Describe a DNA molecule and its shape
Answer:
DNA is a long molecule, made up of two strands twisted together to make a spiral known as a double helix.
What makes each of the mechanical layers different?
A. Whether the layer is rock or metal
B. Whether the layer is solid, liquid, or in between
C. Whether the layer is dense or thick
which levels of classification system are used in scientific name
Answer:
There are seven major levels of classification: Kingdom, Phylum, Class, Order, Family, Genus, and Species. The two main kingdoms we think about are plants and animals. ;)
Answer:
It is a two-name system using the category of genus and speices to precisely name an organisms. the genus and speices name is called an organism scfientic name.
explanation:
PLEASE HELP! Describe what you know about enzymes that explains your evidence and your claim.
Use the words: pH, substrate, product, active site, 3D shape, denature, and hydrogen bonds.
https://brainly.com/question/20699338 (link to other post w/ same question 18 point reward!!!)
Claim: The optimum pH environment for catalase is approximately pH 7.0 and thus has the highest activity in a neutral pH environment. If the solution is too acidic or too basic the catalase is inactive and no longer functions as an enzyme.
Answer:
In the case of catalase, the optimum pH is approximately pH 7.0. That is, catalase works best at a neutral pH. If the solution is too acidic (low pH value) or too basic (high pH value) the catalase is inactive and no longer functions as an enzyme.
hope this helps!!:)
Explanation:
Which statement best express the central idea of the text
Answer:
cant see the answer choices
Explanation:
Would a cell that did not undergo cytokinesis be able to function properly? Explain.
Answer:
If cytokinesis wouldn't really occur, the cytoplasm would not be broken and two similar daughter cells would not function as a result. Therefore a cell should not be divided into two separate cells to stay at rest.
Explanation:
Cytokinesis, which is the final step of mitosis, is split into two isolated, equivalent daughter-cells by the material.
I NEED HELP WILL GIVE CROWN FOR TWO CORRECT ANSWERED QUESTIONS
Answer: 4. H
Explanation:
what do you call humid air mass that forms over water in cold areas?
group the items according to the type of respiration they describe (picture included)
Answer:
Aerobic: Processes Oxygen, Carbon Dioxide by-product
Anaerobic: Processes Carbon Dioxide, Fermentation
Both: Produces ATP, Takes place in cells
Explanation:
Aerobic Process: Oxygen, Carbon Dioxide by-product
Anaerobic Process: Carbon Dioxide, Fermentation
Both: Produces ATP, Takes place in cells
What is respiration ?Respiration is a metabolic process in which an organism's living cells use oxygen to obtain energy (in the form of ATP) and release carbon dioxide as a byproduct of the oxidation of complex organic substances.
Anaerobic respiration occurs when there is no oxygen present, whereas aerobic respiration occurs when there is oxygen. Alcohol is produced by anaerobic respiration, whereas carbon dioxide and water are the byproducts of aerobic respiration. Compared to anaerobic respiration, aerobic respiration produces more energy.
Thus, respiration is a vital process of the body.
Learn more about respiration, here:
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#SPJ2
Very large, massive stars burn their fuel much ___________ than smaller stars.
Answer:
Very large, massive stars burn their fuel much faster than smaller stars. Their main sequence may last only a few hundred thousand years. Smaller stars will live on for billions of years because they burn their fuel much more slowly. Eventually, the star's fuel will begin to run out.
help Which phrases describe S waves?
Answer:
I think it is A
Explanation:
Suppose scientists determine that a set of genes is significantly more prevalent in murderers than in the population at large. Would that mean that murderers are not at fault for what they do? Why or why not?
Answer:
No
Explanation:
That a gene is common to all murderers in the population does not mean that murderers are not at fault for their crimes.
Having a gene that correlates with murder just gives one a genetic tendency but the environment and personal choice still have to influence the decision to commit the crime. In other words, one might have the genetic tendency to commit murder but still has to be environmentally enabled and the ability to choose to either do it or otherwise. Nature, nurture, and personal choice would have to synergistically work together for the phenotypic expression of such a gene.
HELPPP!!! ASAPPPP!!!!
Which is NOT a characteristic of all vertebrates?
a well-developed brain protected by a skull
an exoskeleton
paired appendages
a backbone
Question 16
Check all that apply
-n
nore
Fats have many important functions in your body, select the states that support this idea
A
Gives you energy
B
Keeps your body warm
С
Protects your organs
D
Helps you sleep well
E
Builds cells
F
Helps your body absorb vitamins from food
Answer:
all of them
Explanation:
Which communities do early colonisers form
Answer: the correct answer is ecological communities. Explanation: The early colonizers result in the generation of ecological communities. The formation of these communities starts with a few animals and plants, which afterward develops into a complexity.
Explanation:
Shortly after ingesting a big plate of carbohydrate-rich pasta, you measure your blood's hormone levels. What results would you expect, compared to before the meal
Answer:
blood hormone level will increase
Explanation:
since once food reach the stomach it will trigger different hormone process that cause release of enzymes required to digest carbohydrate
After ingesting a plate of pasta, which is rich in carbohydrates, the levels of insulin increases and glucagon decreases in the blood.
The working of insulin and glucagon:The hormone insulin and glucagon work in a negative feedback loop. At the time of digestion, the foods, which comprise carbohydrates are transformed into glucose. The majority of this glucose is sent to the bloodstream, resulting the elevation of blood glucose levels.
This enhancement in the levels of glucose in the blood signals the pancreas to generate insulin, and reduce the levels of glucagon in the blood. After some hours, glucagon works to counterbalance the activities of insulin.
After five to six hours, the levels of glucose in the blood decreases due to the activity of insulin, this instigates the pancreas to generate glucagon.
Thus, after eating carbohydrate rich food, the levels of insulin increases in the blood and glucagon decreases.
Find out more information about insulin and glucagon here:
https://brainly.com/question/9042181
Nitrogen-fixing bacteria making
nitrogen available for use by other
organisms to utilize is an example
of..
A. mutualism.
B. commensalism.
C. decomposition
The nitrogen fixation bacteria makes the nitrogen available for the plants directly into the soil. This is an example of mutualism, where both bacteria and organisms are benefited.
Most leguminous plants like peas, bans, and cloves have colonies of nitrogen fixation bacteria. These bacteria are found attached to the roots nodules and tend to fix the nitrogen. Through this, the bacteria gain sugar from the plant.Hence mutualism is the end product of the interaction. This option A is correct.
brainly.com/question/21040043.
Animals respond to stimuli by performing behaviours.
Predict the relationship between memory and behaviour?
Answer:
Animals may respond to environmental stimuli through behaviors that include hibernation, migration, defense, and courtship. As a result of cold, winter weather (stimulus) some
hope this helps
Many cities contain green areas, such as the park shown in the image below.
How do such roadless areas make a city more sustainable?
Answer:
Its A.
Explanation:
I just took the quiz trust me :D
Answer:
They provide high-density urban areas with space for outdoor recreation.
Explanation:
I just took the quiz.
What regulates the flow of water through a cell membrane
Answer:
osmosis? I hope I'm right
Answer:
1. osmosis 2. tonicity 3. hydrostatic pressure.
Explanation:
which of the following is an example of positive feedback?
Answer:
uuh theres not an example please comment under this post to me the options
Explanation:
34. What had to form before cells could form?
(1 Point)
sulfur molecules
organic compounds
plants
oxygen gas
Answer:
B. organic compounds I think if it's wrong then it might be A. sulfur molecules
Organic compounds, fc a cell couldn't form until organic molecules united with one another to form more complex molecules.
1 which characteristic of life describes the life cycle of a butterfly?
A Crowing and developing
B. Using energy
CHaving cells
D. Responding to its environment
Which trait is controlled by three or more genes?
A:seed color in pea plants
B:feather color in roosters
C:fur color in palomino horses
D:hair color in humans
Answer: D:Hair color in humans
Explanation:
Which of the following is an example of a monomer and a monosaccharide:
A maltose
B. galactose
C. glycine
D. sucrose
Answer:
B. galactose
Explanation:
Galactose is a monosaccharide and is fairly abundant in a human diet