In cherry tomatoes, red color (R) is dominant to yellow color (r). If two heterozygous plants are crossed, what percentage of the offspring will be yellow?
Answer:
50
Explanation:
If you cross two heterozygous tomato plants, you get four base genotypes of (Respectively,) RR, Rr, Rr, and rr. That makes your percentage A. 50%.
Explain h0mozygous and heter0zygous?If a dominant red fruit (RR) plant is crossed with a recessive over yellow fruit (rr), then the phenotype will be red fruit and the genotype Rr. It is a case of complete dominance.
In diploid organisms (2n), an individual is homo-zygous when it carries two copies of the same gene variant (i.e., the same allele).
Moreover, an individual is heter0zygous when it carries two different alleles for the same gene locus.
In complete dominance, the dominant allele completely masks the expression of the recessive allele in heter0zygous individuals.
Thus, That makes your percentage A. 50%.
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Which of the following is most likely to contribute to density-dependent regulation of populations? Group of answer choices Individuals voluntarily stop mating so that overcrowding does not occur. Density-independent factors lead to fewer births and increased mortality. The incoming energy decreases in populations experiencing a high rate of increase. Density-dependent factors lead to fewer births and increased mortality.
Answer:
Density-dependent factors lead to fewer births and increased mortality.
Explanation:
The carrying capacity can be defined as the maximum population size an environment can support. Density-dependent limiting factors produce a logistic growth pattern (S curve) in the population until it reaches its carrying capacity, thereby decreasing the birth rate and increasing the mortality rate in the population. Some important density-dependent limiting factors able to control the size of the population are competition (intraspecific competition), predation and diseases.
What is true about two different cell types in the body?
Answer:
Option B
Explanation:
In cell differentiation, the objective is to differentiate cells based on their functions and the organs they are going to form. In this exercise, the cells need to get on and off to define the type of the cell and its function. Hence options A, C is important for cell differentiation. Information from DNA is transferred to mRNA for cell differentiation; hence option D is also correct. While option B has no role in cell differentiation loss of DNA segment could cause mutation i.e. deletion.
Hence, option B is the correct answer
what is the shape of the bacteria thiobacillus
Answer:
this bacteria has a rod shaped form
Answer:
rod-shaped
Explanation:
Bacteria in the genus Thiobacilli are classified within the order Pseudomonadales. They are small, rod-shaped cells (0.5 by 1–3.0 µm) which may be motile or nonmotile. Motility is due to a single polar flagellum. Bergey's Manual (1957) lists nine species, most of which are aerobic.
Define light reaction.
Define dark reaction.
I am in search of perfect answer, otherwise i'll report it.
➜ A chemical reaction which take place only in the presence of light, is called light reaction or light dependent reaction.
• It takes place in grana of chloroplast.
➜ A chemical reaction which can take place even in the absence of light, is called dark reaction or light independent reaction.
• It takes place in stroma of chloroplast.
By favoring some alleles over others, natural selection can lead to survival advantages for some organisms. Which of the following is NOT an adaptation as a result of natural selection?
a
A certain snake species has many members of various colors.
b
A moth's wing markings help it blend into the forest habitat.
c
A bird that dives into water to hunt fish has webbed feet.
d
A bird has a certain beak size that allows it to eat seeds of various sizes.
Answer:
The Answer is A
Explanation:
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__________ is a method of studying complex systems by reducing the components that are studied (e.g. studying cells in culture and using those results to understand what is going on in a complex disease).
Select one:
a.
emergent properties
b.
systems biology
c.
genomics
d.
reductionism
Answer: A.
Explanation: "An emergent property is a property which a collection or complex system has, but which the individual members do not have. In biology, for example, heart is made of heart cells, heart cells on their own don't have the property of pumping blood. You will need the whole heart to be able to pump blood."
Explanation for the incorrect answer:
"Systems biology is the computational and mathematical analysis and modeling of complex biological systems. It is a biology-based interdisciplinary field of study that focuses on complex interactions within biological systems, using a holistic approach to biological research. "
A trait that occurs in 900 individuals out of a total of 1,800 individuals occurs with a probability of
Answer: 25
Explanation: I hope this helps you out <3
A trait that occurs in 450 individuals out of a total of 1,800 individuals occurs with a probability of 25.
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Which two structures are part of the cortisol pathway?
Each gland consists of two parts: an inner medulla, which produces epinephrine and norepinephrine (adrenaline and noradrenaline), and an outer cortex, which produces steroid hormones.
The structures that are part of the cortisol pathway are the hypothalamus and liver.
Cortisol is a glucocorticoid in the brain with the function of operation of Gluconeogenesis and stress. The pathway of cortisol in the body is termed as cortisol pathway.
What structures are in the Cortisol pathway?The cortisol pathway is started with the release from the brain, targeting the hypothalamus. The release of epinephrine and nor-epinephrine is controlled with the cortisol release.
The release of the hormones targets the pituitary and adrenal gland and controls the release of stress hormones.
The gluconeogenesis process is controlled by the cortisol hormone. The process takes place in the liver.
Thus, the structures that are part of the cortisol pathway are the hypothalamus and liver.
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Does anyone have the file for a biology lab. The lab is...
Lab: Blood Typing
Assignment: Lab Report
The name of the class is Biology B-IC
Answer:
are those the answer choice?
Explanation:
State the function of Bowman's capsule and glomerulus.
➜ Bowman's capsule and glomerulus have semipermeable walls.
The glomerulus, is a tuft of capillaries contained in Bowman's capsule.The water and dissolved substances (wastes and useful) are filtered into the Bowman's capsule and from here they are filtered into the tubule.Thus, both the structures act as filtering apparatus.When a car slams on breaks, a book in the seat of the car slides forward. What terms describes why that happens?
Answer: Newton's first law which states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Which of the following statement about gene mutation is not correct. It:
a) Can be inherited
b) May result in a change in the number of bases that make up the gene
c) Always results in a change in the protein for which the gene codes
d) May result in a change in the order of bases that make up the gene
Answer:
c) Always results in a change in the protein for which the gene codes
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Describe anaphase1 meiosis using the words “homologous chromosomes, centrioles, spindle fibers and sister chromatides.” And make it as short as possible
True or fasle? Cells have to divide when becoming too large so that the cell can
maintain homeostasis.
Answer:
True
Explanation:
The cell has to dividewhen it comes to large, because the cell wall is not big enoughtpo maintain all inside the cell when to large.
anyone really good at biology can solve biology question
Answer:
Depends what kind of biology or question it is?
Explanation:
Explain what you need help with and possibly I can!!
Hope all is well, have a wonderful day! <33
Water travels down in a
waterfall at a rate of 15
feet per second.
I
Answer:
ok be more specific and I will answer it in the comments
I can't help only knowing that water goes at 15 ft per second
Explanation:
Si la filosofia es un saber acerca de las cosas desde un punto de vista universal, entonces dificilmente sea ciencia
Explanation:
Esta afirmación es correcta, porque si bien la ciencia se deriva de la filosofía, la filosofía es la necesidad humana de obtener conocimientos y así desarrollar un pensamiento racional, crítico y diferente al sentido común, y por tanto se conceptualiza como algo más subjetivo, cultural y más amplio que la ciencia. , que se basa en hechos y estudios para respaldar un análisis. A través de la filosofía es posible desarrollar la ciencia, pero son cosas diferentes porque la ciencia está ligada al empirismo y la filosofía es más amplia y comprensiva.
Two brown-eyed parents have produced three blue-eyed sons. What can be concluded about the parents?
Only the father carries an allele for blue eyes.
Only the mother carries a dominant allele for blue eyes.
The allele for blue eyes is on the father's Y chromosome.
They both carry a recessive allele for blue eyes.
Answer: C, I think
Explanation:
What's the answer please?
Answer:
C
Explanation:
They can be the same or different because if they are the same the genotype will be TT (normal) or tt (Bent), if they are different then the genotype will be Tt (only normal)
How have some mountain plants adapted to their environment?
Explanation:
plants at higher elevations have stems or rhizomes which extend deeb beneath the soil. this allow them to store food so they can immediately grow in spring.
Which of the following increases transpiration?
A air around the leaf with high humidity.
B air molecules around the leaf with kess kinetic energy.
C an obsence of light falling on the leaf.
D water molecules in the leaf with more kinetic energy.
Jayden wants to model the hydrological cycle. He puts some water in a small plastic cup, draws a line on the cup at the water level, and places the cup upright on a window sill. After three days of being undisturbed, the amount of water in the cup is below the line Jayden drew. This is an example of:
A. Transpiration
B. Evaporation
C. Condensation
D. Precipitation
Which is the best example of a response to an external stimulus?
A. drinking water after a long run
B. avoiding the sun by looking for food at night
C. a hungry bear hunting for food
D. falling asleep in the treetops of a forest
will mark brainiest
Answer:
B
Explanation:
I'm not 100% sure.... but that one is the only choice I would pick
Answer:
A
Explanation:
HELP I AM IN A TEST! I WILL MARK AS BRAINLIEST IF CORRECT!
Which of the following statements is true?
Fusion reactions split hydrogen nuclei apart.
Fission reactions release more energy than fusion reactions.
Nuclear power plants change electricity into nuclear energy.
U-235 is an isotope of uranium.
Answer:
Fission occurs when a neutron slams into a larger atom, forcing it to excite and spilt into two smaller atoms—also known as fission products. Additional neutrons are also released that can initiate a chain reaction.
When each atom splits, a tremendous amount of energy is released.
Uranium and plutonium are most commonly used for fission reactions in nuclear power reactors because they are easy to initiate and control.
The energy released by fission in these reactors heats water into steam. The steam is used to spin a turbine to produce carbon-free electricity.
Explanation:none
Answer:
Nuclear power plants change electricity into nuclear energy.
Explanation:
Q. What are peristaltic movements ?
➜ The contraction and expansion movements of the walls of food pipe are called peristaltic movements.
This movement pushes the food in forward direction in the alimentary canal.What are abiotic things made of if they are not made of cells?
Answer:
Light, minerals, and things from the periodic table!!
Explanation:
The bacterial DNA can be found in the
The bacterial DNA can be found in the cytoplasm.
Hope this helps
The one that provides short term energy and structure to the body ____________________
Answer: ATP—Adenosine triphosphate,
Answer:
Adenosine triphosphate,
Explanation:
Hope this help