explain the concept of linkage. if you performed a test cross with a fruit fly that is heterozygous for two genes how could you conclude that the two genes are linked

Answers

Answer 1

Answer:

The correct answer would be - the ratio of phenotypes in an organism cross will tell if the genes are linked or not.

Explanation:

In this question, we perform a test cross with a fruit fly that is heterozygous If we perform a test cross between two parents with identical heterozygous genomes AaBb.

If there is no recombination found in the offspring of this cross it means there are no linkage of genes present.  And if there are new or recombinant phenotypes present it means that there are genes linked together.


Related Questions

Are you against GMO foods? If so please right a paragraph below explaining why you are against it. DO NOT COMMENT IF YOU ARE ONLY HERE FOR POINTS!!!!!!

Answers

Answer:

here for points lol

Explanation:

Genetically Modified Organism, are they really as safe as we think? I think not. GMO is the act of changing the genetics of living organisms there are may harms that can come from this, my biggest concern is the side effects that it may produce. While many say that there are no side effects, the article Here's The Real Reason Why GMOs Are Bad, And Why They May Save Humanity’ by Erik Kobayashi-Solomon states, “DNA strands are cultured in a bacterium and inserted into the host plant’s nucleus using a virus. “Bacterium” and “virus” are not the kinds of things people want associated with their food.” This conveys that the ‘side effects’ of consuming GMO induced products may be right in-front of us, while there are some good bacteria there are more bad bacteria and viruses in the air we can never be too sure if we are allowing more bad bacteria in our bodies than there are supposed to be. Sure it may be natural to have bacteria and viruses in our food but is it really safe to have foods that were modified to have more bacteria and viruses than it is supposed to? Do we really understand and know what may happen if we were to consume those foods? Do we understand that mixing bacterium’s and viruses with others can create a more deadly bacterium which can just be the end of life on earth as we know it? Are we willing to take this chance?







I’m not too good at writing paragraphs with my own evidence but I hope this was good enough :)

Your hand gets cold when you touch a chunk of ice. What kind of energy transfer is occurring?
Group of answer choices

Conduction

Convection

No energy transfer is occurring.

Radiation

Answers

Answer:

Conduction

Explanation:

Conduction is occurring as heat is being transferred through a direct touch. One example of conduction is a wooden spoon becoming hot after directly touching a hot pot.

Convection is more of a circulation motion of heat, and radiation is transfer through heat waves, such as sunlight.

I hope this helped! Let me know if you have any further questions :)

In anatomy, -tomy means:

Answers

Answer

cutting or incision

for example: gastrotomy means a surgical incision to the stomach

Answer:

: of or relating to anatomy or the body structure of organisms anatomical studies/structures/mechanisms The mollusks are divided according to common anatomical traits into seven classes.

Explanation:


What is the region of rapid cell division (growth) in plants with a process known as mitosis?

Please help

Answers

Explanation:

They grow through a combination of cell growth and cell division (mitosis). The key plant growth is meristemn, a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate. Meristem allows plant stems and roots to grow longer (primary growth) and wider ( secondary growth ).

What happens to the water supply when icecaps and glaciers are formed? Water increases. Water decreases Water changes to gas. Water remains the same.​

Answers

Answer:

Water volume remains the same.

Explanation:

Ice formation is a phase change from liquid to solid.  The ice is less dense so its volume gets larger.  Warm it up, melt the ice and it will return to the same volume it had as a liquid.

Pluto was once classified as a planet. However, scientists no longer classify Pluto as a planet. Which is a likely reason for this change?

The original hypothesis about Pluto was supported.
No observations of Pluto were made in the past.
Several planets in outer space were found to be similar to Pluto.
There were significant changes in scientific knowledge about planets.

Answers

Answer:

D ig

Explanation:

Answer:

D

Explanation:

EDGE 2021!

PLZ MARK BRAINLIST

What is actually cycled in a web of organisms?

Answers

Answer:

Carbondioxide gas.

Explanation:

Carbondioxide gas is actually cycled in a web of organisms, The plants takes carbondioxide gas for the process of photosynthesis, this plant is eaten by herbivores for energy and carbondioxide is released in the process of respiration. After that, carnivores feed on these herbivores and oxygen is used in the breakdown of food for releasing energy and carbondioxide gas is also released from the body through breathing so the cycle of carbondioxide gas is continue.

What is "crossing over" ?

Answers

Answer:

Crossing over is the substitution of genetic material in the germline. When egg and sperm cells, also known as meiosis, are formed, paired chromosomes are arranged from each relative in such a way that identical DNA chromosome sequences cross over each other.

Explanation:

Crossing resulting in genetic material shuffling is a significant cause of the genetic difference between descendants.

Asexual reproductie of a plant produces many different-looking forms of that plant.
True
Or False

Answers

Answer:

false

Explanation:

asexual reproduction is reproduction that is not the fusion of gametes, its just normal cell division. In normal cell division the parent cell produces 2 daughter cells that have the exact same genes as the parent cell, which does not produce different looking froms of the plant.

Answer:

False

Explanation:

Asexual repoduction only needs one parent, so the offspring would inherit the DNA of that parent making it genetically identical to the parent.  Asexual reproduction/mitosis creates 2 diploid daughter cells.

By which process is energy from the sun converted to energy that is usable by cells? A photosynthesis B respiration C translation D digestion

Answers

Answer:

A. Photosynthesis... Plant cells uses the suns energy to start a chemical reaction to make food. it turns glucose into food.

Explanation:

Determine a relationship between the x- and y-values. Write an equation.
Х
1
-3
2
-8
у
3 4
-18
13

Answers

Answer:y = y = -5x + 2

Explanation:

Y = (y2-y1)(x2-x1) x + b = mx + b (b is the y-intercept)

= (-8+3)/(2-1)x + b = -5x + b

to find b

when x = 0, y=b = 2

(could draw graph to make clear)

this is a straight line: the slope shows that for any x0, y1 = y0 - 5

how do i explain the process of protien synthesis ??

Answers

This amazing artwork shows a process that takes place in the cells of all living things: the production of proteins. This process is called protein synthesis, and it actually consists of two processes — transcription and translation. In eukaryotic cells, transcription takes place in the nucleus.

Protein synthesis is the process in which cells make proteins

If a parent cell having 16 chromosomes undergoes mitosis, how many chromosomes
will there be in each daughter cell?
16
32
8
46

Answers

Answer:

16

Explanation:


1. List some sports that involve:
a) aerobic respiration
b) anaerobic respiration.

Answers

Answer:

running,tennis and football

Explanation:

how are the structure of DNA and the structure of Protien , related ???​

Answers

Answer:

The sequence of basis on the DNA molecule is what directs the sequence of amino acids in the protein molecule - that's how it all links together! So, the sequence of bases in DNA codes for the sequence of amino acids of a protein.

Explanation:


2. Errors sometimes happen during DNA replication. If a DNA nucleotide that contains
guanine is accidently substituted for a DNA nucleotide that contains thymine, which of
the following will always happen because of the error in DNA replication?

Answers

Answer: the DNA polymerase enzymes will come in and fix the mistakes

Explanation:

The DNA can make two differnet erros a slicent mution or a mution that happenes to make an effect on the body. but before all that the DNA polymerase enzymes come in and fix most of the incorrectly inserted nucleotide

If you used a slingshot to launch a bowling ball and a baseball with the same force, which would go further? Explain your reasoning.​

Answers

Answer: The baseball will go farther because of Newton's law. The more mass an object as, the more force needed to move it. The bowling ball has more mass than a baseball so more force is needed to move it.

Explanation:

Why does the ocean heat and cool more slowly than the atmosphere?
A. The atmosphere receives more of the sun's energy.
B. The ocean has a lower density.
C.The atmosphere has a higher heat capacity.
D. The ocean has a higher heat capacity.

Answers

Answer:

D. The ocean has a higher heat capacity.

Explanation:

Have you ever noticed, when you leave water out on the counter for a long time it turns warm. The sun is not even near it also, so therefore your answer is D. MARK ME AS BRAINLIEST PLZ!

based on the data provided explain how cellular processes must be altered in stomach cancer cells compared with normal stomach cells to result in the different levels

Answers

Answer:

The analysis according to another type of situation is characterized elsewhere here.

Explanation:

SIRT3 concentrations were significantly throughout all healthcare professionals with stomach cancer, 60 percent of normal subjects didn't demonstrate SIRT3 interpretation, 35 percent have been lesser and therefore only 5 percent were massive, while 55 percent were significantly high in SC patient populations, 37 percent were lesser and therefore no SIRT3 concentrations remained. Glucose output, lactic acid consumption but instead ATP production were also particularly high throughout patient populations with that cancer compared to the regular, supported by the sound including its organizations.

4
At what trophic level do decomposers obtain their energy?

Answers

Answer. They are the “last trophic level” in some hierarchies because they feed on everything (National Geographic). However, according to the strict trophic level definition they would be primary consumers.

Which of the following are mixtures?
SELECT ALL THAT APPLY
a
sand
b tea
ws
C water
d
oxygen
e
copper
f
air

Answers

Answer:

air, oxygen, water, sand. and tea

Answer: Air, Sand, and Tea

Explanation:

How would you classify an amoeba: animal-like, plant-like or fungus-like?
Why? (Support your answer with evidence).

Answers

Answer:

fungus like

Explanation:

it is a bacteria.

Look at the diagrams below. They show steps in the sequence of replication.
The steps of this sequence happen in what order? A)4,1,2,3 B)4,2,3,1 C)4,3,2,1 D)4,1,3,2

Answers

Answer:b

Explanation:

Answer:

D: 4,1,3,2

Explanation:

Marsha and Meghan drive to St. Louis to attend a Cardinals baseball game. Once inside the stadium, they decide to start drinking beer. After a few innings the young women find themselves frequently having to use the restroom, much to the annoyance of the other fans sitting around them that have to let them pass each time.

Required:
a. What hormone does the alcohol Marsha and Meghan are drinking appear to be inhibiting?
b. What is the normal action of this hormone?

Answers

Answer:

a.The alcohol is inhibiting the vasopressin hormone, also known as antidiuretic hormone (ADH).

b.The vasopressin hormone makes us retain water in our kidneys to maintain adequate water levels in our body and expel the right amount of water and other products in the urine.

Explanation:

When we drink alcohol, we inhibit the antidiuretic hormone(ADH), also called vasopressin hormone. It is responsible for the retention of water in our kidneys to absorb the products that are there.  Also, it keeps the body with the right levels of liquid. If we drink alcohol, we inhibit the ADH, so we would not retain water, and as a result, we will produce more urine, which leads us to urinate more often. The consequence of this excessive loss of water is dehydration.

I Using the key choices, identify the cell type(s) or blood elements that fit the following descriptions. Insert the correct term or letter response in the spaces provided. Key Choices A. Red blood cell D. Basophil G. Lymphocyte B. Megakaryocyte E. Monocyte H. Formed elements C. Eosinophil F. Neutrophil I. Plasma _________________________ 1. Most numerous leukocyte _________________________ 2. ___________________ 3. ___________________ 4. Granular leukocytes _________________________ 5. Also called an erythrocyte; anucleate _________________________ 6. _________________________ 7. Actively phagocytic leukocytes _________________________ 8. _________________________ 9. Agranular leukocytes _________________________10. Fragments to form platelets _________________________ 11. (A) through (G) are examples of these _________________________12. Increases during parasite attacks _________________________13. Releases histamine during inflammatory reactions _________________________14. After originating in bone marrow, may be formed in lymphoid tissue _________________________15. Contains hemoglobin _________________________16. Primarily water, noncellular; the fluid matrix of blood _________________________17. Increases in number during prolonged infections _________________________18. Least numerous leukocyte

Answers

Answer:

NeutrophilNeutrophilEosinophilBasophilRed blood cellMonocyteNeutrophilMonocyte LymphocyteMegakaryocyteFormed elementsEosinophilBasophilLymphocyteRed blood cellPlasmaMonocyteBasophil

Explanation:

A. Red blood cell: Blood cell that is a product of the medulla. These cells contain hemoglobin that carries oxygen from the lungs to the rest of the body.

B. Megakaryocyte:  Big cell easy to recognize for its size. Differs from other cells for being polyploid, growing by endomitosis, and being bigger. They have important biological functions. The most important one is the formation of plaquettes, necessary for hemostasia, damaged vessels reparation, and tissue healing.

C. Eosinophil: Granulosites. Immune System cells, active during infections, pathologies, inflammations, and allergies.  Originated in the medulla and transported to the blood and organs. One of their functions is to defend the organisms from parasite infections, helping to destroy the pathogen.

D. Basophil: Granulosites. Immune System cells.  in the medulla and transported to the blood. Only when there are parasite infections they can be present in tissues and organs. They release substances such as histamine that make possible the inflammatory process.

E. Monocyte: Agranulocyte phagocyte. Originated in the medulla and transported to the rest of the body. They differentiate into macrophages in tissues. They defend the body from bacteria and viruses. When monocyte values are elevated, usually means that there is an important process of infection.

F. Neutrophil: Phagocytic Leucocytes polymorphonuclear found in the peripheric blood. Compose the first defense line against bacterial and fungal infections.  Product of the medulla and transported to the blood. They are the first to arrive at the affected tissue, followed by lymphocytes and macrophages.    

G. Lymphocyte: Leucocyte. There are two types of lymphocytes: B cells, which can produce antibodies in the presence of bacteria, viruses, and toxins. T cells can destroy infected cells from the body. They all circulate in the blood.

H. Formed elements: Elements that might be found suspended in the plasma. These include all the mentioned cells and cell fragments      

I. Plasma: Transparent, acellular, and kind of yellow liquid that represents 55% of the blood volume.            

Someone pls answer thissssssssssssssssssssss

Answers

Answer:

See explanation

Explanation:

We know that the momentum of a body is defined as the product of mass and velocity of the body.

Let us now obtain the momentum for each item on the list;

Football player = 100 * 10 = 1000 Kgms-1

Skier = 60 * 20 = 1200 Kgms-1

Frog = 0.9 * 12 =10.8 Kgms-1

Meteorite = 0.1 * 1000 = 100Kgms-1

Base ball = 0.14 * 30 = 4.2 Kgms-1

Satellite = 3000 * 8000 = 24000000 Kgms-1

Steel ball = 2.0 * 2.8 = 5.6 Kgms-1

Help plzzzzzz I need helppp

Answers

where are you traveling from and to?

I KNOW THIS IS AWKWARD BUT PLEASE

An advantage of
reproduction is that a genetic disorder in a parent might not affect the offspring.


Which of the following are forms of asexual reproduction? Select three options.

zygote formation
binary fission
fertilization
fragmentation
sporulation

Answers

Answer:

binary fission

fragmentation

sporulation

Explanation:

ERGENT DUE TODAY: a low pressure systym will arrive tomorrow the weather will be a hot and dry, b cold and dry, c warm and rainy, d cold and rainy

Answers

Answer:

its A hot and dry

Explanation:

im good at sci

Answer:

c warm and rainy

Explanation:

Question 1- Name 2 ways that humans affect land ecosystems.

Answers

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. Also Humans may destroy natural landscapes as they mine resources and urbanize areas. This is detrimental, as it displaces residing species, reducing available habitats and food sources. ... This can negatively effect an ecosystem because the introduced species may outcompete native organisms and displace them.
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