Answer:
Genotypic ratio F2 = 1:2:1
Phenotypic ratio F2 = 3:1
Explanation:
In this case, parental genotypes can produce only one type of gamete, i.e., one parent can produce only D gametes, while the other parent can produce only d gametes. Therefore, all F1 generation will be heterozygous (Aa). An F1 hybrid is the first filial generation of offspring obtained from crossing between different parent types. The F1 will produce two gametes (A; a) in a ratio 1:1, thereby the F2 obtained by crossing F1 offspring will have a phenotypic ratio of 3:1 (3 D_; 1 dd) and a genotypic ratio of 1:2:1 (1 AA; 2 Aa; 1 aa).
Which of the following is a natural resource that could be used up someday?
OA. sunlight
ОВ.
gas
OC. wind
D.
water
Answer:
gas
Explanation:
gas is a limited source that one day we might run out of so that's why tesla made cars that run on electricity
and inheritance.
An organism's DNA guides growth, reproduction,
a.
Development
b
Photosynthesis
C.
Homeostasis
d
Organ function
Answer:
A. Development
Explanation:
This would be correct
Air pressure and air temperature ______ with altitude. a Stay the same
b increase
c decrease
d none of the above
What does the slope of the curve on a distance vs time graph represent?
Answer:
What does the slope represent on a velocity graph? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.
Explanation:
Brainliest please?
Why is it difficult to know the impacts of deep sea mining?
O It has never been tried successfully, so we don't know exactly how it can be done.
Olt is only done in environmentally sensitive areas, where the organisms are being harmed in many ways already, and it is difficult to know the effects of mining.
We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.
O Most countries have laws against it, so the impacts have not been tested.
Answer:
I'm pretty sure its...
Explanation:
We know relatively little about deep sea ecosystems, making it harder to assess the impact of mining.
Deep sea mining has never been tried successfully, so we don't know exactly how it can be done so it is difficult to know the impact of deep sea mining.
what is deep sea mining?The process of extracting and often excavating mineral deposits from the deep seafloor is known as deep-sea mining.
The deep bottom spans around two-thirds of the total seafloor and is found at ocean depths greater than 200 meters.
Deep-sea mining has been shown to affect marine biodiversity and ecosystems, but we still lack the knowledge and resources to safeguard them.
There are considerable gaps in our understanding of the deep sea's biodiversity and ecosystems since it is still understudied and poorly understood.
This makes assessing the possible effects of deep-sea mining and putting in place necessary safeguards to protect the marine ecosystem and the three billion people whose livelihoods rely on marine and coastal biodiversity challenging.
Hence , the correct option is A.
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Which process uses the sun's energy to convert water on Earth's surface into water vapor? (3 points)
a
Condensation
b
Evaporation
c
Precipitation
d
Transpiration
Answer:
Evaporation is the answer to your question
Select the part whose main job is to direct a plant cell's activities by sending instructions to
different parts of the cell.
vacuole
chloroplasts
mitochondria
nucleus
Please hurry I’m in a rush
Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
What is the short definition of a plant cell?Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Where can you find plant cells?Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals.
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What is a way that society controls science?
Answer:
I think it's D. Governments give research funding.
One line with red flowers and the other line with violet flowers. You carry out a monohybrid cross and find that all of the F1 offspring have violet flowers, while 97 of 400 F2 offspring have red flowers.
Explain the inheritance of flower colour in this plant species.
Answer:
See the answer below
Explanation:
The inheritance of flower color in the plant species follows the simple dominance/recessive inheritance of Mendel. The red flower trait did not show up at all at F1 only for it to show up at F2. It simply means that the red flower trait is recessive while the violet flower color is dominant.
Assuming that the allele for violet flower color is designated as R while that of red flower color is designated as r. The genotype of the violet flower would be true-breeding, RR, while that of red flower color would also be true-breeding rr:
RR x rr
F1 Rr Rr Rr Rr
phenotype ratio = all violet flower color
Rr x Rr
F2 RR Rr Rr rr
phenotype ratio = 3/4 violet flower color and 1/4 red flower color
97 red flower offspring out of 400 is approximately 1/4.
Hence, the inheritance of flower color in the plant obeys a simple dominant/recessive Mendelian law with the violet color trait dominant over the red color trait.
Practice Labeling the Cell. Label the parts of each cell.
What is the difference between speed and velocity in your own words?
Answer:
Explanation:
The difference between speed and velocity is that speed is a scalar quantity while velocity is a vector quantity.
hope this helps my friend
If an object such as a toaster is unplugged, should it be under the category of mechanical energy or electrical energy?
Answer:
electrical energy
Explanation:
Hope it helps!!! mark me brainlist plzzzz
like not to get political or anything but wth
is oatmeal
Answer:
i feel like its a form of soup
Explanation:
Answer:
Dry Breakfast lol
Explanation:
Music > color should be read as: a. music on color c. music to color b. music before color d. music then color Please select the best answer from the choices provided A B C D
Answer:
C
Explanation:
Where would an explosive volcano MOST LIKELY occur?
A) in the middle of a large plate of earth
B) where plates are coming apart
C) near the edge of a large plate of earth
D) where large plates of earth are colliding
Answer:
d
Explanation:
Essential Question: Compare and contrast the structure and function of the major organelles found in plant and animal cells.
Answer: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Explanation:
This is from google
The Chatham Island robin is a small endangered bird found in scrub forests off the coast of New Zealand. The robin is preyed upon by introduced species such as cats and rats. In 1980, the population decreased to only 5 individuals and every individual today is a descendant of a single female. Which of the following is best illustrated in the decline of the Chatham Island robins?
1. Carrying capacity
2. Population bottleneck
3, Population overshoot
4. Type I survivorship
Answer: 2. Population bottleneck
Explanation:
A Population bottleneck is a term used to refer to an event that causes the population of a species to reduce in very large numbers. Such an event can be environmental disasters like famine, the overhunting of a species or the destruction of its habitat.
In the case of the Cha-tham Island Robin, the bottleneck event must have been the introduction of cats and rats which then went on to hunt the birds to near extinction.
How are molecules moved across the membrane during active transport? A. They slide through the small spaces in the membrane. B. They are moved using transport proteins and pumps. C. They attach themselves to the membrane and are pulled through
ASAP
B. They are moved using transport proteins and pumps.
Answer:
B. they are moved using transport protiens and pumps
Explanation:
just took a test on this
Woodpeckers peck trees to find food and make nests. What would happen if
most of the trees are cut down?
Answer:
the wood packers wouldnt have a home to live in anymore. the effect of this means that the habitat for them and other animals is destroyed and they could start to die and become endangered species. this is my opinion
Explanation:
This is from what I have learned so far
[____________] is the material or energy that goes into a system
Answer:
Solar energy
Explanation:
A(n)
is a substance that an organism needs for growth and survival but
cannot make for itself
A) Nutrient
B) Consumer
C) Producer
D) Inheritance
Answer:
Nutrient
Explanation:
Hope this helps!
Chromatography is an analytical test used to closely examine which aspect of fibers? *
1 point
Cross Section
Light Absorbtion
Dye Composition
Fiber Composition
Hope it helped you
Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
O volume
Odensity
O shape
Answer:
Density is conserved in chemical reactions and shown by balanced equations
Ecosystems have producers, decomposers, and composers. Carnivores and scavengers are both types of consumers in an ecosystem. Which of the following is a characteristic of scavengers that make them different from carnivores?
A.) Scavengers eat only plant materials
B.) scavengers are omnivores that always eat live animals
C.) scavengers are omnivores that eat dead plants and animals.
D.) scavengers are able to produce their own food when no other food is available.
Answer:
a
Explanation:
Which are ways of showing probability? Select 4 options.
50%
557
3/4
1 x 10
25%
7/8
Answer:
50%
3/4
25%
7/8
Explanation:
Probability must be greater than or equal to zero and less than one.
Answer:
A,C,E,F
Explanation:
just took the test
Dihydromyricetin (DHM), a chemical found in the moyeam plant of Asia, has shown the ability to treat certain
cancers.
Which of the following answer choices best describes a possible mechanism of action for this cancer drug?
Choose 1 answer:
А
DHM decreases apoptosis in cancer cells.
DHM decreases apoptosis in normal cells.
DHM promotes apoptosis in cancer cells.
D
DHM promotes apoptosis in normal cells.
Answer:
(C) DHM promotes apoptosis in cancer cells.
Explanation:
Since some cancers are caused by a lack of apoptosis (programmed cell death), DHM treats cancer by forcing apoptosis to occur in cancer cells, stopping their growth and division.
The choice which best describes a possible mechanism of action for this cancer drug is DHM promotes apoptosis in cancer cells. The correct option is C.
What is Dihydromyricetin (DHM)?DHM is a chemical that is present in the plant, Hovenia Dulcis grow in Japan. It is a raisin plant and has several medicinal values. It is used in East Asia as a hangover medicine.
Apoptosis is a process of cell death, so if DHM promotes apoptosis in the cancerous cells, then it will reduce cancer by killing the cancer cells.
Thus, the correct option is C, DHM promotes apoptosis in cancer cells.
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can someone help me
since in DNA adenine(A) pairs with thymine(T) and cytosine(C) pairs with guanine(G) the answer is D
Which of the following is a reactant (input) of cellular respiration?
O energy
O carbon dioxide
O glucose
water
Answer: oxygen and glucose are reactants of cellular respiration
Explanation:
Oxygen and glucose is what is needed in order for the cellular respiration process to work
If a scientist wanted to follow Mendel’s experiment with a different kind of plant, which type of plant would she examine?
A plant that cannot self-pollinate.
A plant that has only recessive alleles.
A plant that has three alleles for a trait.
A plant that has only two alleles for a trait.
Answer:
A plant that has two alleles for a trait.
Explanation:
Took the test
Answer:
D
Explanation:
TOOK THE TEST GOT IT RIGHT
are all qnswer right
Answer:
yes good job!
Explanation:
Answer:
Explanation:
Yes great job
