Answer:
16
Explanation:
because you can't give half for each sex cell or else the child will be messed up
Mammalian erythrocyte lacks nucleus. Why? Give reason.
Explanation:
Complete answer:
A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.
I NEED HELP!! ILL GIVE BRAINLIEST!!
I'm behind and i don't know how to do chi-square equations!!!!
An individual always has two alleles for the same gene (one on each chromosome). Which statement is true?
a)A person's two alleles are always different
b)A person's two alleles are always the same.
C)A person's two alleles may be the same, and they may be different
Answer:
A
Explanation:
An individual always has two alleles for the same gene (one on each chromosome). The statement which is true is "a person's two alleles may be the same, and they may be different". Thus, the correct option is C.
What are alleles?An allele can be referred to as an alternative form of a gene. An allele is located at a specific position on a specific chromosome. These alleles can be passed on from the parents generation to their offspring through the process of sexual reproduction.
The presence of two identical alleles at a particular gene locus (chromosome) is referred to as a homozygous genotype. This may include two normal alleles or two alleles that have the same variant. The presence of two different alleles at a particular gene locus is referred to as a heterozygous genotype.
Therefore, the correct option is C.
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please help me define
hypothalamus in full describtion.
Jeremy is observing a cross-section of a corn stem under the microscope. He observes that there is no vascular cambium present in this stem.
Why is there no vascular cambium in corn stems?
Α.
Vascular cambium is an apical meristematic tissue that is responsible for increasing the height of the plant, which is not
observed in monocots such as corn.
B.
Vascular cambium is a lateral meristematic tissue that is responsible for thickening of the plant, which is not observed in
monocots such as corn.
C.
Vascular cambium is an apical meristematic tissue that is responsible for thickening of plant, which is not observed in
monocots such as corn.
Answer:
The answer is C.
Explanation:
I just took the test and it was right.
Are genetic mutations avoidable? Explain.
Answer:
Mutations happen in our cells all the time. It's actually how all humans grow and change. The vast majority of mutations are harmless. Thus, they aren't avoidable.
Mutations occur in our cells all the time. It's how all humans grow and transform. The vast bulk of mutations is harmless. Therefore, they aren't avoidable.
What are Genetic Mutations?
The permanent transmissible difference in the genetic material. An individual exhibiting such a transformation. A point mutation is a mutation resulting from a modification in a single bottom pair in the DNA molecule.
Any alteration in a nucleotide succession of DNA is called a mutation. Chromosomal, dependent, and gene mutations are some of the illustrations of different kinds of genetic mutations.
So, Therefore, They aren't avoidable.
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Which of the following are density-dependent factors? (Choose all that apply)
flash floods
disease
food supply
volcanic eruptions
which of the following is density- independent factor?
flash floods
genetic diversity
food supply
water availability
Answer:
Since “DENSITY FACTORS” affect a population in the same ways as others. I will say DISEASE & FOOD SUPPLIES
The following are density-dependent factors are:
b. disease
c. food supply
Density-dependent factors:Density dependant elements can have either a positive or a negative relationship to populace size. With a positive relationship, these restricting variables increment with the size of the populace and breaking point development as populace size increments.
This includes disease, predation, and food supply.
Thus, correct options are b and c.
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Structure 2 in figure four represents a
A. mRNA
B. tRNA
C. rRNA
D. DNA molecule
Need help pleaseee
I don't even know why I keep getting this wrong. Anyone with the right answer?
Answer:
i'd say water, food and maybe space cause they need air...
What is the complementary base to cytosine in DNA?
A uracil
B. thymine
C. adenine
D. guanine
Answer:
Guanine
Explanation:
C and G
T and U both go together in DNA.
What happens when boiled liver is added in hydrogen peroxide (H2O2)?
How do environmental factors influence genetic traits?
a.
Environmental factors determine all genetic traits.
b.
Environmental factors can determine if a genetic trait becomes a health issue.
c.
Environmental factors are determined by genetic traits.
d.
Environmental factors have no influence on genetic traits.
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
Environmental factors determine all genetic traits. Why? So the organism that is gaining the trait has a better chance of survival or to be more specific a better chance at adapting to their environment. Let me give you an example, the long necks on a giraffe. The diet of a giraffe consist of mostly acacia leaves which are leaves that are on the top of a tree. This environmental factor is why giraffes have long neck so they can get to the leaves of the tree. If they did not have long necks giraffes probably would´nt survive
Now let me give you an example that is related to evolution
Evolution is the change in the characteristics of a species over several generations
An example of this happening can be shown in mosquitoes
People were using DDT (which is an insecticide used to kill bugs) on mosquitoes to harm them. Many of the mosquitoes had died but the remaining were able to produce offspring that had mutations. These mutations caused the mosquitoes to be resistant to the insecticide. This shows another example of environmental factors having an influence on genetic traits. The DDT spray was the environmental factor and the mosquito being able to produce offspring that were resistant the the insecticide is the outcome from the influence.
Which of these is NOT a threat to biodiversity?
O Habitat Loss
Discovery of New Species
O Invasive Species
O Human Activity
Answer:
Discovery of new species is the correct answer :)
Answer:
Omg obviously its discovery of species. i totally agree because habiat of loss is when species lose their homes. And human activity is a very threatful to biodiversity!! Thats the reason glaciers are melting!!!!!! and the poor animals are going extinct. like coome on people help! :)
Explanation:
Please help!! I will give brainliest! :)
Which of the following is most likely to happen if a cell is not able to divide?
A. The cell will create two identical daughter cells.
B. The cell will absorb oxygen during photosynthesis.
C. The cell will not be replaced when it is damaged.
D. The cell will not release carbon dioxide during respiration.
Answer:
Correct answer is C. The cell will not be replaced when it is damaged
Which of the following statements is true about atoms?
-All atoms are the exact same size.
-Atoms are made of the same type of parts, but the sizes change.
-Atoms are made from different types of parts, but they are the same size.
Answer:
Atoms are made of the same type of parts,but the sizes change
Explanation:
What traits do you think future generations of humans would have and what behaviors would they exhibit? Write a claim-evidence-reasoning statement that answers the question.
C:
E:
R:
Answer:
I D K but hope you find the right answer.
Explanation:
I just wanted the points.
Are microwaves useful of harmful to humans?
Answer:
no who say this no harmful for humans
Answer:
Microwaves are a safe, effective, and highly convenient cooking method. There is no evidence that they cause harm — and some evidence that they are even better than other cooking methods at preserving nutrients and preventing the formation of harmful compounds.
Name two organ system that are located in the plants
Answer:
shoot system, root system
Explanation:
What is the phenotypic ratio of BLUE to RED for the flowers in this Punnett square?
88
80
A
4:1
B
1:2:1
С
0:4
D
4:4
Answer:
D
Explanation:
The phenotypic ratio of blue to red flower is 4:4.
88÷80×4= 4:4
why the skin is categorised as an organ?
Answer:
Skin is one of the largest organs of the body. It is recognized as an organ because it consists of several types of tissues that function together.
Explanation:
got it offline
Determine the
phenotype based on
the given genotypes.
Answer:
theres no image
Explanation:
In Plants, the cell wall typically occurs
not at all (it's only found in animal cells)
O just outside of the central vacuole
O just outside of the nuclear envelope (nuclear membrane)
O just outside of the plasma membrane (cell membrane)
HELP PLS PLS PLS Describe how commercial fishing by humans can have a negative impact on the balance of organisms in an aquatic environment.
Answer:
Aside from reducing fish stocks, unsustainable fishing practices can have other negative impacts on the marine environment. For example, some fishing techniques such as dredging and trawling can cause widespread damage to marine habitats and organisms living on the sea floor
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➣ If humans will continuesely kill mass of fishes for their own benefit it will disturb the ecosystem of the maine habitat . In the places like ponds and rivers the quantity of fishes is not that much and if human will kill catch all the fishes the growth of alage plant will increase rapidly as there is no organism is there to eat them and the big predator also stave for hunger as there is no food for them
.hope it helps u
What do you think is different about the water in each cup? Describe as many differences as you can in the space below.
The following information should be considered related to the difference about the water in each cup
In the cup 1, it shows the solid form which makes the cup heaviest. In the cup 2, it is in the liquid form that shows the medium weight.And, in the cup 3, it is in the gas form that shows the light weight.Learn more: brainly.com/question/17429689
Why are there lots of trash around supermarkets?
ASAP HELP NEEDED ITS PICTURE BASED AND I SUCK AT IT
ASAP HELP PLEASE SERIOUSLY I WILL GIVE BRAINLIEST~
1.) cell membrane
2.) Cytoplasm
3.) ribosomes
4.) Nucleus, chromosomes
5.) nuclear membrane
6.) Rough Endoplasmic reticulum
7.) Smooth Endoplasmic Reticulum
8.) Golgi Apparatus
9.) Lysosomes
10.) Vacoules
11.) Mitochondrias, cristae
Children inherit half of their genes from parents. Explain Why?
Answer:
This is because the two parents share one or more common ancestors and so carry some of the same genetic material. If both partners carry the same inherited gene change, their children are more likely to have a genetic condition.
Answer:
yes
Explanation:
The chromosomes in cells line up in pairs and exchange bits of genetic material before forming an egg or sperm cell. Each mature egg and sperm then has its own specific combination of genes, which means children will inherit a slightly different set of DNA from each parent.
please helppp asap, have a good rest of your day !
Answer:
hh × Hh
The results showed that roughly 50% of the mice are brown and roughly 50% of the mice are black. So the genotypes of the mice must be hh and Hh. (punnet squares are in the image attached)
Explanation:
hh - brown
Hh - black
How does interphase 1 of meiosis differ from interphase II of meiosis?
Answer:
Interphase 2 is that the 2 cells that have been already split split again. making 4
Which statement is supported by the cell theory? All animal cells are the same size. All plant cells are the same shape. Similar organisms all have the same number of cells. Cells are the primary unit of structure in living organisms.
Answer:
No
Explanation:
because thier are so many type of cell