Examine a two-gene cross that follows simple Mendelian inheritance of freckles and eyebrow shape between a woman with genotype Mmpp and a man with genotype mmpp. How many phenotypes are possible in their offspring and in what ratio?
a. 4 phenotypes: 9:3:3:1
b. 2 phenotypes; 1:1
c. 3 phenotypes; 8:4:4
d. 3 phenotypes; 1:2:1
The number of possible phenotypes in the Mendelian cross would be 2 in the ratio 1:1.
Phenotypic ratiosFirst, let us look at the result of crossing the two genotypes Mmpp and mmpp.
Mmpp will give the gametes Mp, Mp, mp, and mp
mmpp will give the gametes mp, mp, mp, and mp
The two sets of gametes can thus be lined up on both axes of the Punnet's square as shown in the attached image.
Genotypes of the offspring: 8 Mmpp and 8 mmpp
Since the two genes follow a simple Mendelian inheritance pattern, the 2 genotypes automatically equate to 2 phenotypes in the ratio 1:1.
Hence, the correct option is b.
More on phenotypic ratios can be found here: https://brainly.com/question/3840678
Which sentence supports the statement that complex, multicellular organisms are made
up of specialized cells that each perform different functions for the body?
A. Human liver cells make proteins that promote homeostasis that neurons do not.
B. Different species of bacteria have different shapes and structures to their cells.
C. The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D. Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer: A. Human liver cells make proteins that promote homeostasis that neurons do not.
Answer plssss! thanks
Answer:
[tex]\boxed {\boxed {\sf C. \ They \ provide \ energy}}[/tex]
Explanation:
This mitochondria is also called "the powerhouse of the cell" because it powers the metabolism, cellular processes, and chemical reactions in the body.
How does the mitochondria provide power?
They are the site of cellular respiration, a process that makes ATP molecules, or more specifically adenosine triphosphate molecules.These molecules provide the useable energy needed for many different life processes, including protein synthesis.So, the best answer choice is C. They provide energy
In the process of transcription, how does the mRNA strand relate to DNA?
a) The mRNA strand is complementary to the DNA strand; however, uracil instead of adenine is paired with thymine.
b) The mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
c) The mRNA strand mimics the DNA strand; however, uracil is the 5th based used in the sequence.
d) The mRNA strand is an exact copy of the DNA strand.
b) the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
In the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.
TRANSCRIPTION:
Transcription is the first stage of gene expression which involves the synthesis of mRNA molecule from a DNA template. The double-stranded DNA molecule is separated and each single strand serves as a template for synthesizing a complementary mRNA strand. Adenine pairs Thymine while Guanine pairs with Cytosine in the DNA molecule but in the mRNA strand, uracil instead of thymine is paired with adenine. Therefore, in the process of transcription, the mRNA strand is complementary to the DNA strand; however, uracil instead of thymine is paired with adenine.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
Orlando shares with a friend that he does not like people who are homosexual, and that he goes out of his way at work to avoid helping customers who he suspects are gay. His friend says to him, "man, that isn't a cool way to be. You do realize that you're expressing a form of prejudice called ________, don't you?"
Answer:
homophobia
Explanation:
Some Lesbian/Gay/Bisexual/Binary/Transgender/Queer (LGBTQ) people experience discrimination for their sexual orientation and/or gender identity. Homophobia is a negative attitude or feeling towards people who are identified or perceived as part of the LGBTQ community. Homophobia is a psychic problem often associated with irrational fear and misunderstanding toward homosexuality. In general, homophobic people have ultraconservative religious beliefs.
When animals feed off of land faster than the plants can regrow, the land is _______.
a.
below its carrying capacity
b.
forested
c.
overgrazed
d.
depleted
Answer:
C. Overgrazed
This is because there were too many animals on the land to feed, when there are to many animals grazing the same piece of land, it is called overgrazing.
Explanation:
When animals feed off the land faster than the plants can regrow, the land is called "overgrazed." Overgrazing is harmful for an ecosystem. It is caused by cows, goats, etc.
What is overgrazing?Grass is consumed by animals such as cows and goats. Due to overgrazing, the ecosystem is harmed. Due to overgrazing, the plantation of an area is affected. The plants cannot regrow early because they have been fed by animals. Due to the low plantation, it affects the ecosystem's rainfall.
Less transpiration by plants is the result of less rainfall. Hence, less precipitation is seen. The overgrazing causes soil erosion. Generally, soil is held by the roots of the plants. As plants are not there, soil can be easily erased by floods and other natural calamities. The soil erosion caused the land to become sterile. The crops won't grow on sterile land. The infiltration capacity of the soil is reduced.
Hence, the correct answer is "overgrazed." Option C is the correct answer.
To learn more about the overgrazing, refer to the following link:
https://brainly.com/question/28916992
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The diagram below represents a cell in a human body which statement concerning the structures within the cell is acurate
Answer:
I can help, but there's now picture of the diagram or any of the statements to choose from
Explanation:
if you put a diagram and the choice, I can answer it
Answer:
C)
Structure 3 is a mitochondrion, where respiration takes place.
Explanation:
I need help I have to know whta is DNA
Answer:
DNA, is short for deoxyribonucleic acid, is the molecule that contains the genetic code of organisms. This includes animals, plants, protists, archaea and bacteria. DNA is in each cell in the organism and tells cells what proteins to make.
Which light produces the most glucose in the plant? (remember from the previous lesson that glucose is a food product (sugar) made during photosynthesis in a plant.) blue green yellow red
Answer:
The correct answer is - red light.
Explanation:
Plants absorbed white light best than any other light, however, red light is better light than other lights after the white light due to its long wavelength and the right amount of energy to excite or stimulate the electrons of the light center of the chlorophyll and transit to a higher energy level which increases the rate of photosynthesis.
Red light is a light with a longer wavelength which helps in radiate and heat the chlorophyll than its counterpart. A high rate of photosynthesis results in more glucose production.
Answer:
Red light
Explanation:
1. due to the thick and viscous material in the asthenosphere the liquid is called ____.
Answer:
Viscoelastic
Explanation:
the answer is- Viscoelastic
Explanation:
Viscoelastic is the property of material that exhibit both viscous and elastic characteristics when undergoing deformation.
Please help me with this asap
Answer:
390W are used to just power the leaf blower.
Explanation:
Therefor less than half its power is being used for it to actually do its job.
Hope that helps! Good luck!
Please label the water cycle part correctly I accidentally forgot how to do this so pls.
Answer:
1: Condensation 2: Precipitation 3: Evaporation
Explanation:
Hope this helps
What is the genotype of a person with type A blood, who had a father with type O blood?
Question 5 options:
A: IAIB
B: IAIA
C: IAi
D: ii
Answer:
C
Explanation:
Father/mother must each donate a blood gene to the child. Father must have a genotype of ii because O blood is recessive. Thus, the kid must have one O type gene. However, the kid has A type blood overall, so the kid must have an A (dominant) gene as well. Thus, the answer is IAi.
Gregor Mendel was able to create specific principles to explain the observations he made during his studies of genetics. Mr. Smith has brown eyes, while Mrs. Smith has blue eyes. Mr. and Mrs. Smith have four children. Three of their children have brown eyes, while one of their children has blue eyes. What part of Mendel’s principle of dominance is shown in the situation described? a. All alleles are dominant. b. All alleles are recessive. c. Some alleles are dominant and others are recessive. d. Alleles are neither dominant nor recessive.
Please help thank you
Answer:
A. Identify Alleles:
Allele one: Rr = Round seeded pea (phenotype)
Allele two: rr = Wrinkled seeded pea (phenotype)
B. Parent cross:
Rrxrr
Explanation:
Identify the inputs and outputs of the circulatory
system (please help!)
Answer:
The main input of cellular respiration is oxygen. The oxygen goes into the blood which then goes to the tissues. The main output is Carbon Dioxide. The carbon dioxide goes from the tissues, to the blood, and then to the lungs.
Explanation:
what happens to the rate of photosynthesis of a plant if we decreased the light intensity it receives?
Answer:
Required Answer:- A plant cannot photosynthesise very quickly without enough light.Eventhough There is plenty of Carbon dioxide,water and suitable temperature is available.An organism with a dominant allele for a particular form of a trait only exhibits the trait sometimes. Please select the best answer from the choices provided T F
Answer:
False. An organism with a dominant allele for a particular form of a trait always exhibits that trait.
Explanation:
According to Mendelian genetics, a dominant allele for a given characteristic will always be expressed in the phenotype, regardless of whether its allelic formula is with both dominant alleles or heterozygous.
In the heterozygous form, the dominant allele is able to avoid the expression of the recessive allele, expressing the phenotype. The recessive allele will only be visible in the genotype when both alleles in the pair are recessive.
In non-Mendelian inheritance, however, there are cases where the dominant allele is expressed in conjunction with another allele, such as co-dominance. In intermediate inheritance different alleles —dominant and recessive— are combined and expressed as a combined characteristic.
Using the following vocab words, write them in order of smallest to largest level
of organization: tissues, cells, organs, organism
Answer:
Cells, Tissues, Organs, Organism
I hope this helps!
Answer:
cell, tissue, organ, organism.
Explanation:
Which of the following leads to evolution?
Extinction
Natural selection
Global warming
migration
Answer:
just find the answer in this explainations
Explanation:
New traits can also come from transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Which of the following explains how water is recycled on Earth? A. Ice gains heat, becomes liquid, and changes back to ice as it loses heat. B. Ice gains heat, becomes a liquid, gains more heat, and forms a gas (water vapor). C. Liquid water gains heat, evaporates into the air as water vapor, gathers into clouds, and then falls back to earth as a liquid as it loses heat. D. All of the above.
Answer:
B. Ice gains heat becomes liquid, gains more heat, and forms a gas.
Explanation:
write a 5 sentence paragraph that describes the characteristics that all living things share
Answer:
Living things are derived from single units and show several characteristics such as growth respiration, response to stimuli, homeostasis, evolution, and reproduction.
Explanation:
The natural world comprises several biotic or living and abiotic, non-living factors. Cells, are considered the smallest unit capable of supporting life. All living, or biotic factors must be able to grow, carry out respiration- a process that produces energy, and reproduce (pass on genes). They also show some level of organization or complexity, and respond to stimuli. Additionally, living organisms exhibit homeostasis or control over their internal environment and evolve or change over time to adapt to their external environments.
Which trait is common to both science and pseudoscience? Both offer an explanation. Both are based on facts. Both are based on beliefs. Both change with time.
Answer:
Both change with time.
Explanation:
Scientific theory is based on complex methods of observation, deduction and experimentation. The resulting findings are usually tested and peer extensively peer-reviewed before being regarded as factual information. Science often changes with new data and experimentation.
Pseudoscience, uses relationships between data and observed phenomena to draw conclusions. This often involves compelling assumptions, and anecdotal data without the need for external review or validation.
Both may change over time, as society's approach to new information and phenomena evolve.
Answer:
B: Both are based on facts
Explanation:
Took the test, and looked it up.
which type of erosion can place a boulder in the middle of a field
Answer:
Plucking
Explanation:
Answer:
Plucking
Explanation:
Plucking is the method used which makes erosion happen during glaciations.
What conclusion can you make about the skeletal structure of these two organisms? A. They share a common ancestor, but they’re different species. B. They’re the same species. C. They’re different species with no evolutionary relationship. D. The four-legged organism directly evolved from the two-legged organism.
Answer:
a
Explanation:
a
It's is A. They share a common ancestor, but they're a different species.
which statement provides the strongest evidence that birds evolved from dinosaurs
A. A fossilized nest of the herbivorous dinosaur Brachiosaurs shows that it laid eggs
B. Fossils of the beaked dinosaur Ankylosaurus show that it had modified scales that produced hard bony plates
C. A fossilized rib cage of the semi aquatic dinosaur Spinosaurus shows that it had lungs
D. Fossils of the winged dinosaur Archaeopteryx show that it had modified scales that produced feathers
Answer:
A is guess
Explanation
. A fossilized nest of the herbivorous dinosaur Brachiosaurs shows that it laid eggs
Answer:
D.
Explanation:
A. can be applied to most archosaurs, including the non dinosaur ones. No.
B. again can be applied to many archosaurs that aren't dinosaurs, such as crocodillians. No.
C. Nope, most terrestrial animals have lungs lol.
D. can be the only answer, the feathers on archaeopteryx aren't protofeathers like those found on other theropod dinosaurs, they're traditional feathers as those found on birds.
Answer: D
explain the variuous ways in which typical cell adapted to its functions
What could be a good effect of a mutation?
A. DNA is destroyed
B. Less variety in a population
C. More variety in a population,
D. DNA does not function properly.
ОО
Answer:
More variety in a population.
Explanation:
Answer: more variety in a population
Explanation:
Which of the following is not a salivary gland?
(a) Sublingual (b) Lachrymal (c) Subm
Answer:
b, lachrymal.
Explanation:
lachrymal is an eye gland.
Answer:
b, i think
Explanation:
What type of igneous rock is cooled and solidified above ground?
Intrusive
Extrusive
Laccolith
Batholith
Answer:
extrusive
Explanation:
Answer:
Extrusive
Explanation:
Igneous rocks are called extrusive when they cool and solidify above the surface. These rocks usually form from a volcano, so they are also called volcanic rocks