if an organism has a diploid number of 12, how many possible combinations of chromosomes could exist in its gametes with no crossing over?
a.) 8
b.)16
c.)32
d.)64
Answer: D
Explanation:
Chromosomes are the inherited unit of the organism which transfers the parental gene to the offspring.
The diploid is the paired chromosome quantity present in the cell that originates from each parent.
The correct answer is:
Option D. 64
This can be explained as:
The diploid (2n) number of chromosomes = 12Haploid (n) number of chromosome = 6The possible number of chromosome pairs is given by 2ⁿ. Where n = a haploid number of chromosomes.So, the possible combinations of chromosomes that could be found in the gametes with no crossing over will be:
= 2⁶
= 64
Therefore, 64 possible combinations of chromosomes can be present.
To learn more about diploid and haploid chromosomes follow the link:
https://brainly.com/question/19876353
What does an organism's genotype describe?
the allele combination for a trait
the physical appearance of a trait
the number of alleles on a gene
the number of different traits inherited
Answer:
the allele combination for a trait
Explanation:
The genotype describes which alleles (versions) of a gene an organism has. Diploid organisms, such as humans, have two copies of each gene. Sometimes these alleles are the same and the individual is h0m0zygous for that gene. If they are different, the individual is heterozygous for that gene.
The physical appearance of a trait is the phenotype.
Answer:
The answer is A.
Explanation:
I don't know for sure but I will come back and tell u if it is right after my quiz...
What type of new information is being used to classify organisms?
Answer:
DNA is the evidence that biologist use to identify new type of organisms
Explanation:
Taxonomy is the system biologist use to name living things
How did U.S. environmental policy shift in the 1980s?
A. A backlash led to efforts to weaken federal environmental laws.
B. It was basically the same as in the 1960s and 1970s.
C. Most of the important environmental laws were finally passed.
D. There was a large push to achieve sustainability quickly.
Answer:
eu acho que é a C
um belo dia abençoado
which best describes a gene?
Answer:
Asegment of chromosomal DNA
Explanation:
A gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes. It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person's unique physical features.
Answer:
A piece of a chromosome
Explanation:
A.P.E.X
why do plants need to resort to natural and artificial reproductive methods to propogate plants
Answer:
plants can undergo natural methods of Asexual reproduction performed by the plants its self or artificial methods ,aided by humans
Explanation
in natural asexual reproduction roots can arise new plants1)) The average depth of a lake is 10 meters. Do you think sunlight acts a limiting factor the same way it does in the ocean? Why or why not?
2)An area with a high population of crayfish in local lakes and rivers has begun experiencing acid rain, rain that has a pH of 3.0 - 4.0. Predict how this rain will impact the crayfish population.
Answer:
No.
Explanation:
No, the sunlight does not act as a limiting factor the same way it does in the ocean because the lake has lower depth as compared to ocean which is very deep i. e. more than 3000 meters where sunlight does not reach and we know that sunlight is very important for the survival of plants. Sunlight reach in the water about 1000 meters so plants can survive and do photosynthesis due to its low depth.
Acid rain will impact the crayfish population because acid rain decreases the pH of water and this lower pH causes death of the crayfish and also the food of crayfish and thus lower the population of crayfish due to unavailability of food..
What is needed to change rock and minerals from one type to another?
a
Water and pressure
b
Radiation energy
c
Lava and heat
d
Heat and pressure
I NEED HELP PLEASE THIS IS A TIMED TEST!
I added a picture it’s simple plz help
Answer:
The higher the density, the more closely packed the particles called atoms and molecules. The lower the density the more spaced muy the particles are
If density = mass divided by volume, than the more volume a material has the less dense it is. For example, if there are five people in a room that is 5ft. by 5ft. the people will be tightly packed together and more dense. If those same five people were in a room that is 20ft. by 20ft. they would have more space and it would not be as dense in the room.
Who knows how to do this pls answer it 100% smart pls tell me the correct answer smart people
Answer:her arm is puffy, red, and swollen
Explanation:
What happens when magma cools during the rock cycle? Igneous rock is formed. Metamorphic rock is melted. Sediments form sedimentary rock. Metamorphic rock forms sediments.
Answer: igneous rock is formed
Explanation:
When magma cools down during the rock cycle then igneous rock is formed. Thus, the correct option is A.
What are Igneous rocks?Igneous rock is one of the three main rock types, while the other being sedimentary and metamorphic rocks. Igneous rocks are the rocks formed through the cooling and solidification of magma or lava from volcano. The magma can be derived from partial melts of existing rocks in either a planet's mantle or the crust.
Lava from the volcano cools to form volcanic rock as well as volcanic glass. This magma can also extrude into Earth's atmosphere as part of a violent volcanic explosion. This magma then solidifies in the atmosphere to form volcanic rock called as tephra. In the atmosphere, tephra is more often called as volcanic ash.
Therefore, the correct option is A.
Learn more about Igneous rocks here:
https://brainly.com/question/23555197
#SPJ6
The primary producer at a deep sea vent would be
A.
spider crabs
B.
chemosynthetic bacteria
C.
tube worms
D.
photosynthetic bacteria
Answer:
spidercrabs
Explanation:
it is because they live under the sea
Most bacterial cells have a cell membrane and a cell wall.. true or false
Answer:
true
Explanation:
An enzyme works only with a specific substance like a
Fork and knife
Key and lock
On and off switch
A dimmer switch
Answer:
A dimmer switch
that the answer
What are some reasons many people do not have enough to eat?
Answer:
Drought reducing the amount of food available, Population size, Not enough money.
Explanation:
hope this helps :3
if it did pls mark brainliest
HELP!!! QUICK!! I'LL GIVE BRAINLYEST!! 14 POITNTS RIGHT NOW!!!
Using the table on the right as a guide, answer the following questions about light-independent reactions.
Describe the process of light-independent reactions.
What are the products of light-independent reactions?
Answer:
Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where carbon fixation takes place. The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.
Answer:
It uses ATP and NADPH and converts it into glucose and other carbohydrates; glucose and other carbohydrates
Explanation:
EDGE 2020
4. Using evidence from the text, describe the purpose of the cell membrane.
Answer:
it protects the cell from germs and stuff
translation is the process by which mrna is translated into a sequence of amino acids
Answer:
Translation is the process by which mRNA is translated into a sequence of amino acids during protein synthesis.
What will be the possible last stage in the life cycle of Betelgeuse and Spica?
Answer:
That made the outer layers cool and expand, thus growing larger and larger until eventually becoming a red supergiant. After a red supergiant explodes, it will become one of two things
Explanation:
. Gravity crushes its core to where it is now just stellar remnants. Stellar remnants are clouds of gas and dust wondering around space, but eventually the gas and dust will get sucked back into the nebula starting a new sta
The image below shows a small bean sprout what does the sprout need to grow into a healthy plant?
what is the "Cell (plasma) membrane"? Question 1 options:
the structure that forms the surface of a cell separating its contents from the outside world.
a type of cell without a membrane-bound nucleus and without membrane-bound organelles, considered by scientists to be a more primitive type of cell than the more complex eukaryotic cells.
a small organelle, made of RNA and protein and found in both prokaryotic and eukaryotic cells, that forms proteins from amino acids .
a cell organelle that is essential to cell functions including reproduction, contains the cell's chromosomes, and is enclosed by a membrane.
Answer:
The first option
Explanation:
The cell membrane is the structure that forms the surface of a cell separating it's contents from the outside world.
Answer:
i think it is a type of cell without a membrane
Explanation:
i'm not sure sorry hawk i will look more into it to help through
SORRY FOR SPAMMING BUT PLEASE HELP I ALWAYS FAIL AT BIO
Answer:
dinasour A lived before dinasour B
its biology, help please :)
what are the differences between antibiotics and vaccines???????........................
Answer:
Antibotics are to help treat a sickness while vaccines are to help prevent certain sicknesses... hope that helps a little.
Explanation:
Antibiotics are used to treat severe infection, but Vaccines prevent infections from ever becoming established. Vaccines are right to be used for protection against any future infection. and Antibiotics are effective for stopping the reproduction process of bacteria and do not have any effect on viruses. These are also not to be used for preparing for potential future infection.
Hope this Helps! May I Have Brainliest? <3
you are provided with a mixture of iron filings, sand and sawdust.explain how u will separate each of these substance from the mixture
Whats The Point Of Life?
Answer:
to enjoy it to the fullest because God put us here for a purpose
Explanation:
Answer:
this feels like philosophy not biology lol.
Explanation:
It is the moment when a mind latches onto an idea or purpose that an individual finds meaning in their life. This means that it doesn't matter who or where you are or whatever activity you might be doing – if your mind believes it has discovered the meaning of life, then that is the meaning of life for you
In single-celled organisms, materials are stored primarily in
Answer:Vacuole
Explanation:Vacuoles basically do the functions of storage, ingestion, digestion, etc.
Can anyone explain in detail the process of mitosis? (Including PMAT)
Answer:
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
Explanation:
Make sure to edit so your not copy-writed.
The cycle of the moon circling the earth is _________
Answer:
The Moon circles the Earth once every 27.3 days – each sidereal month – but its phases repeat every 29.5 days – each synodic month. The difference arises because the Earth itself moves around the Sun by a distance of around thirty degrees each month.
Explanation:
What the effects of sunlight on the aquatic life inhabiting your body of water on the Indian ocean?
Answer:
Any living creature that lives beneath the Pacific surface will absorb the sunlight for nourishment. If the sun banishes all the living organisms (plants and algae) will suffer due to the lack of photosynthesis. The sun has a massive effect on the aquatic life in the oceans, lakes, or any body of water; including the Pacific Ocean.
Explanation:
:)