A woman heterozygous for polydactyly (extra fingers and toes), a dominant trait, is married to a normal man. What is the probability of producing an offspring that has extra fingers or toes?
Answer:
The correct answer is -50%
Explanation:
Polydactyly is a dominant trait where a person gets an extra finger or toes the dominant allele is represented by P = allele for polydactyly, and the recessive allele represented by p = normal allele
So, the heterozygous woman will be - Pp & the normal man will be - pp. The presence of one allele of polydactyly will be able to show its effect as it is dominant.
Cross between heterozygous woman & normal man:
Gametes:
P p
p Pp (Show polydactyly) pp (Normal phenotype)
p Pp (Show polydactyly) pp (Normal phenotype)
From the above Punnett square, the probability of an offspring that has extra fingers or toes will be 1/2 or 50%.
Polydactyly is a condition that occurs wherein individuals have more than the normal amount of fingers and toes. It is also a genetic condition and as well heritable.
The probability of producing an offspring with extra toes or fingers in a cross between an heterozygous and a normal is 50%.
Let P represent the dominant and p the recessive
Pp (heterozygous) and pp (normal)
(woman) P p
(man) p Pp pp
p Pp pp
50% 50%
Therefore, the probability of producing an offspring with extra toes or fingers (Pp) is 50%.
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An allele is
A) Version of a gene
B) Dysfunctional gene
C) Protein
D) Spare copy of a gene
E) Phenotype
how do abiotic and biotic factors create ecosystems ?
During a laboratory exercise in class, Wei is asked to observe cells from different organisms. Her teacher asks her to list structures that are found in all cells. Which of the following could be found in all the cells that she studied?
a.
cell membrane, cytoplasm, DNA
b.
cell membrane, centrioles, DNA
c.
cell membrane, cell wall, DNA
d.
cell wall, cytoplasm, DNA
Answer:
A
Explanation:
the answer is A because all of this organelles found in every organism
The things that should be found in all the cells should be option A. cell membrane, cytoplasm, DNA
The cell that contains cell membrane, cytoplasm, DNA:
The cells that have the common structure should be Prokaryotic and eukaryotic cells. All types of cells should contains the plasma membrane, ribosomes, cytoplasm, and DNA. Here the nucleus should be considered when the cell should be stored into their DNA that represent the genetic material
Therefore, the correct option is A.
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which change would lead to higher carbon dioxide levels in the atmosphere
A. An increase in photosynthesis
B. An decrease in animal
C. An increase in the burning of fossil fuels
D. An decrease in the destruction of forests
An increase in the levels of fossil fuels results in higher carbon dioxide levels in the atmosphere. So the correct option is C.
What are fossil fuels?The components of fossil fuels are decaying plants and animals. These fuels may be burnt to provide energy and can be found in the crust of the Earth. An example of fossil fuel is coal, as well as oil and natural gas.
Coal is a substance that is typically found in sedimentary rock formations, which are collections of rock, dead plant and animal materials, and layers of silt. A chunk of coal must contain more than 50% fossilized plant material.
Shale is one sedimentary rock type that contains oil in its native form. The thick oil that may be used to generate gasoline is created by heating this substance. Typically, pockets of natural gas can be found atop oil deposits. Additionally, sedimentary rock strata devoid of oil might contain it. Methane is the main component of natural gas.
Therefore, an increase in the burning of fossil fuels will result in higher carbon dioxide levels in the atmosphere. So the correct option is C.
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1. Why do you think the heart forms early in an embryo's development?
The developing tissues need a constant supply of nutrients that can only be provided by the circulatory system
Answer:
first organ system to develop is the heart, blood and circulatory system
When you are negotiating in order to resolve a conflict you should take responsibility for your actions.
A.
True
B.
False
Answer:
a
Explanation:
=)
Which of the following is not an example of a watershed?
Plant cells can make their own “food”—glucose. Why do plant cells have mitochondria?
What are three other names that mean the same thing as “cell membrane"?
Answer:
1. plasma membrane
2. fluid mosaic model
3. phospholipid bilayer
Explanation: I learned about this a couple weeks ago.
please help me with both! thank you:)
Answer:
Explanation:
answer - A) into the substance, and the substance changed into a gas.
The bottom is a B: solid. I'm not sure about the top. hope it helps :)
Nitrogen is required for protein formation. What is responsible for the bulk of nitrogen fixation?
A.
air
B.
animals
C.
bacteria
D.
lightning
Answer:
The factor with the responsibility for nitrogen fixation is bacteria (option C).
Explanation:
The nitrogen that contributes to the formation of proteins comes from plants. Due to the inorganic nature of nitrogen, plants require bacteria to contribute to the assimilation of this element, a process called biological nitrogen fixation.
Nitrogen fixing bacteria in plants are called diazotroph and, in some cases, establish a symbiosis with the plant's roots, the rhizobia.
The other options, air, animals and lightning, do not correspond to biological nitrogen fixers with the ability to incorporate nitrogen into plants.HELPPP
Of all of the energy given off by the Sun directed towards Earth, approximately only 50 percent of the energy penetrates directly to
the surface of Earth. What is the best explanation for what happens to the rest of the energy?
A)
Energy is lost during while traveling through space.
B)
Energy is reflected or absorbed by Earth's atmosphere.
1
Some of the energy is reflected back into space by the Moon
Eliminate
D)
Energy is lost through the process of overcoming the Sun's large
gravitational force
Answer:
D
Explanation:
That makes the most sense
Answer:c
Explanation:K12
will mark as brainleist
Answer:
B is correct
Explanation:
A is incorrect because the type of carbon that comes from food is not carbon dioxide.
C is incorrect because the carbon dioxide that comes from factories is part of that cycle, which mean there is no extra carbon, it's just an extra carbon molecule.
D is incorrect because as everyone knows, factories are not living things.
Answer:
glui;op[pklh,jcxvzvcfgyuiop[]\p;khjmnx XZCSDftyuiop[]\
ME?
Explanation:
Plants capture light energy from
the sun and convert it into what
type of energy?
Answer:
chemical energy
Explanation:
What are the major steps in forcing the release of sea urchin gametes? List 4.
Answer:
Sea urchin gametes are produced by injecting the urchins with 1mL of 0.5M Potassium Chloride solution. The solution is injected near the mouth of the urchin. This process kills the urchins, forcing them to release their sperm, in the case of a male, or eggs, in the case of a female
Explanation:
Wisch provides the master code needed for protein synthesis?
O DNA
ORNA
OmRNA
ORNA
It’s the option A
Answer: It is DNA.
DNA cannot leave the nucleus of the cell, so your cells create mRNA using the DNA pattern, and mRNA carries the instructions for protein synthesis outside of the nucleus. However, DNA holds the original code.
can you please give brainliset
Answer:
DNA
Explanation:
I answer this question so the other person can get brainiest
Define "phospholipid bilayer"
When consumers eat plants, they break them down to release chemical energy their bodies can use.
What is the original source of this chemical energy?
Select one answer
A.) Soil.
B.) Minerals.
С.) Water.
D.) Sunlight.
Answer:
d sunlight would be the answer
consuming nitrogen is not a cell process... true or false?
Answer: False
Explanation: Most of the nitrogen is "fixed" by bacteria in the soil
Consuming nitrogen is not a cell process. The given statement is false.
What impact on plants due to depletion of nitrates or nitrogen?Nitrate plays a very important role in the ecosystem and due to presence of nitrogen plants grow fastly and produce large size of fruits and flowers.
Nitrate has a common inorganic ion found in the plants that has to be required for the proper growth and development of the plant.Many growers including nitrates in their nutrient regiment just to stimulate plant growth. Plants has acquired much nitrate through root intake from the soil and water present around them.
Hence due to the depletion of nitrogen, plants are getting turning to yellow and this shows that it produces smaller fruit. In modern era farmers has been adding nitrogen containing fertilizers which produce large amount of grains, foods and fruits which is also free from diseases.
Therefore, Consuming nitrogen is not a cell process. The given statement is false.
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Reaction B: 6
A ___ + 6H2O+ energy --->C. H12O6 +6_B
What molecule does blank with letter A represent in the reaction above?
O carbon dioxide
O water
O oxygen
O ATP
Answer:water
Explanation:
During photosynthesis 6 molecules of carbon dioxide are required to synthesize a glucose molecule, hence option a carbon dioxide is correct.
What is the reaction of photosynthesis?Six carbon dioxide molecules are required, one for each carbon atom in glucose. As a byproduct of water oxidation, 6 molecules of oxygen are created, 6CO2+6H2O→C6H12O6+6O2.
The endergonic pathway requires free energy, which is provided by sunlight. Plants absorb carbon dioxide (CO2) and water (H2O) from the air and soil during photosynthesis.
Organisms primarily employ two types of molecules: glucose and ATP. Both compounds are used as fuels by all living things. Both chemicals are also important in the photosynthesis process.
Therefore 6 carbon dioxide is used in reaction, hence option a carbon dioxide is correct.
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What are the relevance of biolgical practice related to healthcare
Answer:
The answer is below
Explanation:
The relevance of biological practice related to healthcare is very vast. Some of which are:
1. Biological practice helps in understanding the nature of humans and plants. Part of which is understanding the cell nature of human beings when healthy and when having diseases.
2. It also assists in developing modern vaccines, additional powerful medicines, and medical practices that can help combat the diseases in humans.
3. Biological practices also improve human understanding of the nature of diseases, their prediction, medication, and means of averting disease.
what organisms would be found in a wetland ecosystem?
Answer:
Producers: Akulikuli, Aki aki, Makai Sedge, and Makaloa Sedge.
Consumers: the Ae‘o (Hawaiian Stilt), the Alae Keokeo (Hawaiian Coot), the ‘Alae ‘ula (Hawaiian Moorhen),
the Koloa Maoli (Hawaiian Duck), fish, such as the Aholehole and the O‘opu (Goby).
Decomposers: bacteria and fungi.
Bugs, frogs and salamanders, fish, birds, snakes and turtles, and mammals like mice, squirrels, deer, and bears all like to use wetlands.
Alligators, snakes, turtles, newts and salamanders are among the reptiles and amphibians that live in wetlands. Invertebrates, such as crayfish, shrimp, mosquitoes, snails and dragonflies, also live in wetlands, along with birds including plover, grouse, storks, herons and other waterfowl.
Boys and girls plz help me with this question ASAP!, thank you
Answer: telephase is the answer
Amoeba Sisters
Amoeba Sisters Video SELECT Recap: Incomplete Dominance, Codominance,
Polygenic Traits, and Epistasis (Non-Mendelian Inheritance)
AP
Codominance can be observed in some breeds of chicken. Black chickens can result from BB alleles. White chickens can
result from WW alleles. A chicken with alleles BW can be speckled with black and white.
8. Show a Punnett square with a Mendelian cross between two chickens that pre BW x BW.
9. According to your work, complete the following phenotype ratio:
10. According to your work, complete the following genotype ratio:
Black:
BB:
Speckled:
BW:
White
ww
emplete
Mendelian
Non-Mendelian
Incomplete dominance can be observed in snapdragons. Snapdragon flowers
that have two RR alleles have a red phenotype. Snapdragon flowers with a rr
have a white phenotype. Snapdragon flowers that are Rr are pink.
11. Fill in the two Punnett squares in diagram at right.
12. This is a non-Mendelian trait, but how could this be different if the trait
was Mendelian?
R
R
13. Explain the Graphic! How does this relate to epistasis?
BBCC
Bbcc
bbcc
STUDY
14. Apply the Vocab/ The below graphic is a follow-up from
the graphic in #13. Circle genotypes below that you would
expect to result in white coloration and explain why.
Eplutasid
Bbco
BC во
bc bg
вс| BBcc | BBCс | вьсс | высо
высо
B BBCO BBC вьсс | Bbca
BBCO
высо
bbcc
FL
BBco
Bbcc
bbcc
bc Bbcc
Bbco bbccbbco
& Le
bel высо
Bbcc
bbco bbcc
& wr
and
b) Spe
SH
Amoeba Sisters LLC
114
DEC
14
Answer and Explanation
Due to technical problems, I was not able to fill the answer and explanations in the corresponding boxes. You will find them in the attached files.
What energy alternative uses organic matter to convert into alcohol for fuel?
Answer:
Pyrolysis entails heating organic materials to 800–900oF (400–500 oC) in the near complete absence of free oxygen. Biomass pyrolysis produces fuels such as charcoal, bio-oil, renewable diesel, methane, and hydrogen
Explanation:
Question 13
Which of the following functions can be attributed to lipids? Select all that apply.
O A) membrane and barrier formation
DB) information storage
C) energy storage
D) building blocks for cholesterol and other hormones
E) catalyzing biological reactions
Answer:
The Answer is C
Explanation:
The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology.
Energy storage
What is lipid ?
Any of the large group of natural substances that do not dissolve in water, such as natural oils and waxes.
What are functions of lipid?
Within the body, lipids function as an energy reserve, regulate hormones, transmit nerve impulses, cushion vital organs, and transport fat-soluble nutrients. Fat in food serves as an energy source with high caloric density, adds texture and taste, and contributes to satiety.
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Plz help me ASAP! Thank you
Answer:
According to the diagram, cell growth and preparation occur in steps 2 and 4, corresponding to phases G₁ and G₂ of cell cycle.
Explanation:
G₁ phase consists of the beginning of the cell cycle, following the process of previous division, and occurs in a cell that prepares for a next division. In this phase growth depends on the proliferation of mRNA to increase protein synthesis.
G₂ phase —third phase of the cycle— is the continuation of the process of cell growth induced by protein synthesis. Changes occur at the level of cellular components, as preparation of the cell prior to division.
how are sieve tubes adapted to their function
Answer:
seive played allow the food to pass to pjloem tube
DNA polymerase and RNA polymerase are enzymes. They belong to the macromolecule category
Answer:
Catalysts
Explanation:
Both catalyze the reactions
DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.
What type of macromolecule is RNA polymerase and DNA polymerase?
RNA polymerase is an enzyme that creates RNA and catalyzes the initiation and elongation of RNA chains from a DNA template.
RNA is formed by a process known as transcription.
DNA polymerase is a type of enzyme that is responsible for creating new duplicates of DNA, in the form of nucleic acid molecules.
Nucleic acids are polymers, which are big molecules produced up of smaller, repeating units that are chemically related to one another.
Thus, DNA polymerase and RNA DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.
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