Here is some info from the red cross...Universal donors are those with an O negative blood type. Why? O negative blood can be used in transfusions for any blood type.
Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
Approximately 45 percent of Caucasians are type O (positive or negative), but 51 percent of African-Americans and 57 percent of Hispanics are type O. Minority and diverse populations, therefore, play a critical role in meeting the constant need for blood.
Types O negative and O positive are in high demand. Only 7% of the population are O negative. However, the need for O negative blood is the highest because it is used most often during emergencies. The need for O+ is high because it is the most frequently occurring blood type (37% of the population).
The universal red cell donor has Type O negative blood. The universal plasma donor has Type AB blood. For more about plasma donation, visit the plasma donation facts. There are very specific ways in which blood types must be matched for a safe transfusion. The right blood transfusion can mean the difference between life and death.
Every 2 seconds someone in the US needs a blood transfusion.
Use the interactive graphic below to learn more about matching blood types for transfusions.
Also, Rh-negative blood is given to Rh-negative patients, and Rh-positive or Rh-negative blood may be given to Rh-positive patients. The rules for plasma are the reverse.
Answer:
Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
Approximately 45 percent of Caucasians are type O (positive or negative), but 51 percent of African-Americans and 57 percent of Hispanics are type O. Minority and diverse populations, therefore, play a critical role in meeting the constant need for blood.
Explanation:
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
why adaptation is important for living beings
Answer:
Adaption is needed for a living thing to strive in a system, its how they survive.
Explanation:
Adaptation is needed to survive. This includes climate, predators around it etc. For example polar bears. Polar bears adapt to their environment by growing thick coats of fur. These coats keep the bears warm.Without it they would die.
Determine the
phenotype based on
the given genotypes.
Answer:
theres no image
Explanation:
3a. Scientists think some organisms have eyespots on their bodies to help them lure in prey. Choices True False
Answer:
False
Explanation:
The eye spot instead creates a disguise and used to misdirect predators. The eyespots are a defense mechanism for the organism. Scientists have tested this by painting eye spots on a gake prey and a fish was used a s the predator. The predator was discovered to have attacked the fake eyespots more often as it thought it was the prey's head.
Eyespots on a prey can also make the predator to think that it is facing a larger animal. An example is the butterfly which have large false eyes on its wings.
Define the following terms. A Emulsification. B Peristalsis. C Absorption. D Assimilation
Answer:
A] Emulsification - emulsification is the process of breaking down fat into smaller droplets which makes it easy for digestion.
B] Peristalsis - waves of muscular contraction that pushes food along the gut.
C] Absorption - process in which substances are taken in.
D] Assimilation - the process of absorbing minerals and other chemicals from food, usually for growth and repair of cells.
Mistakes in making copies of a cell's chromosomes can occur as the cell is dividing. Such mistakes can affect a single gene, or a portion of a chromosome. Which term describes this process?
Answer:
Mutation
Explanation:
A mutation is any change in the nucleotide sequence of the genome of a particular organism. Mutations may be caused by errors during DNA replication or by exposure to environmental mutagenic factors (e.g., ultraviolet radiation, chemical agents, etc). Mutations can be deleterious, neutral or beneficial depending on the environment. When a beneficial mutation occurs in the germline, it may potentially be inherited and subsequently increase its frequency in the population.
PLEASE ANSWER ASAP, WILL GIVE BRAINLIEST
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.
What happens when boiled liver is added in hydrogen peroxide (H2O2)?
How does anaphase II differ from anaphase I
Answer:
There's a difference.
Explanation:
Anaphase I involves the separating of chromosomes from the sister chromatids and it all occurs in a diploid cell.
Anaphase II involves the split of the sister chromatids into single chromatids and it all occurs in a haploid cell.
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
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)
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.
The six kingdoms of life in order that they evolved on earth ?
A row of elements on the periodic table is called a(n)
A. group.
B. period
C. Valence
D. orbital.
Answer:
B. Period
Explanation:
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
please help me define
hypothalamus in full describtion.
Which statement about the universe is correct?
A) It consists of one Sun, nine planets, and satellites
B) It is made up of mostly of empty space
C) It is known as the Milky Way
D) It is gradually smaller
ur answer is A and u welcome
How does the DNA macromolecule help our cells?
Stores and ( ) information
Ozone is helpful in the upper atmosphere but harmful in the lower atmosphere where we can breathe it
( True or false)
Draw your own Punnett square using the following data.
he mother has long fur:
(F)
F = long fur
Che father does not have long fur: (ff)
f = short fur
Answer:
The punnet squares are in the pic above. Either of them could be correct because the mother may have 2 dominant traits (FF) , or one of them could be recessive (Ff).
A comparison of sexual and asexual reproduction is made by a group of students. Which statements accurately
support the argument that sexual reproduction is advantageous over asexual reproduction in many species? Select
all that apply.
A)
Sexual reproduction leads to greater mutation rate than asexual
reproduction
B)
C)
Sexual reproduction has a greater level of cell division than
asexual reproduction.
Sexual reproduction produces greater numbers of offspring than
asexual reproduction.
Sexual reproduction involves two parents which contribute
equally to the offspring's genetics.
Sexual reproduction involves meiosis and fertilization which
leads to increased genetic variation in the offspring.
D)
E)
Heredity and Reproduction
Answer:
D and E
Explanation:
Because two parents are involved, the rate of reproduction is lower in sexual reproduction, but it is beneficial to have increased genetic diversity in the offspring since the level of adaptations in phenotypes will be higher.
Hope it helped
The statements which accurately support the argument that procreation is advantageous over propagation in many species are given below:
Procreation involves two parents which contribute equally to the offspring's genetics.Procreation involves meiosis and fertilization which leads to increased genetic variation in the offspring.What do you mean by Species?Species may be defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.
Due to the involvement of two parents, procreation increases the genetic diversity among organisms.
In procreation, clutch size is low but parental care is high. It means that this type of reproduction does not produce a large number of offspring.
Therefore, it is well described above.
To learn more about Reproduction, refer to the link:
https://brainly.com/question/16331915
#SPJ2
HELP ME PLEASE THIS IS DUE SOON
T/F
The rna polymerase alone will not start the making of RNA
a: True
b: false
c: possible
d: the lab doesn’t tell
Answer:
the answer would be d) the lab doesn't tell
genotypes please help !
Why are there lots of trash around supermarkets?
Examine the genotype for an individual who is AaBbCcDd. Predict the outcomes of meiosis and the potential gamete combinations
that could form from this individual. Select ALL that apply.
A)
50% of the gametes will be AaBbCcDd.
B)
1/16 of the gametes produced will be ABcd.
The individual could make gametes that contain ABCD.
D)
The individual could make gametes abcd half of the time.
E)
Only dominant traits will be present in the gametes from a heterozygous
individual
Answer: B,C
Explanation:
I did just did the USA test prep
The outcomes of meiosis and the potential gamete combinations that could form from the genotype for an individual who is AaBbCcDd:
B) 1/16 of the gametes produced will be ABcd. C) The individual could make gametes that contain ABCD.A gamete that is formed by the meiosis, is a reproductive cell which has haploid set of chromosomes arise from the genotype, the total number of chromosome in mature organism cells.
A a simple method to calculate the number of gametes:
Count the number of heterozygous alleles i.e Aa Bb Cc and Dd which means 4.n = 4
Then, total number of gametes will be = [tex]2^{n}[/tex] or [tex]2^{4}[/tex] = 16Thus 16 in this condition
The 16 types of gametes are formed by this individual by permutation and combination are:
ABCD, AbCD, ABcD, ABCd,
ABcd, AbcD, ABCd, Abcd,
aBCD, aBCd, aBcd, aBcD,
abCD, abCd, abcd, abcD.
Thus, the correct answer is -
B) 1/16 of the gametes produced will be ABcd. C) The individual could make gametes that contain ABCD.Learn more about permutation and combination:
https://brainly.com/question/17512033
I NEED HELP!! ILL GIVE BRAINLIEST!!
I'm behind and i don't know how to do chi-square equations!!!!
How can deep density-driven currents affect Earth’s climate?
Answer:
The answer is down
Explanation:
The deep density ocean currents aslo have a strong effect on the Earth's climate the water in the North Atlantic Ocean the water is cold and salty this colder salt water sinks because of its greater density then it flows through Southward deep in the ocean
I think this answer may help you .
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.