Answer:
The correct answer is - Ploidy is the number of sets of chromosomes in a biological cell.
Explanation:
Ploidy is the number of sets of the chromosome in a living cell. Ploidy is known for different condition such as haploid, diploid, and aneuploid, and many more depends how many homologues chromosome numbers are present in the cell.
Diploid cells are common in many organisms where one chromosome come from the mother gamete and the other from the father gamete and makes the homologues chromosomes. In diploid homologues, chromosome are 2n where n is the number of homologues of each chromosome.
In haploid there is only one set of each chromosome and mainly takes place by meiosis. In aneuploidy is the condition where the number of homologues chromosomes are not as the normal genome of the organism for example in humans instead of 46 chromosomes there 45 or 47 chromosome found.
Particulates can be removed from smokeslack emissions by which of the following methods?
What result allowed Dintzis to conclude that proteins are synthesized from the N terminus to C terminus
Answer:
The more newly synthesized peptides had greater levels of radiolabeled H
Explanation:
Using immature red blood cells (reticulocytes), Dintzis showed that polypeptide chains of hemoglobin were created from N-terminal to the C terminus during translation. Dintzis labeled with radioactive amino acids that were being actively translated, subsequently digested the translated proteins with trypsin and finally determined the amount of tryptic protein fragments. From this experiment, Dintzis observed that the radioactive products were concentrated in the C-terminus (i.e., labeled amino acids appeared first in the C terminal tryptic peptides), thereby showing that the direction of protein synthesis is from the N terminus to the C terminus.
Which micro-nutrient is NOT manufactured by living things?
A) Vitamins
B) Carbohydrates
C) Minerals
D) Fats
Answer:
Minerals is the micro-nutrient is not manufactured by living things
How many question are on the biology MCAS for 9th grade this year
Answer:
Should be between 50 and 60. I'm assuming about four to six will be open repsonse.
Explanation:
Past experience.
Can someone help me with number 8 and 9?
A 14-year-old boy develops a pruritic vesicular rash on his face and hands 3 days after hiking in the woods. Which of the following are most likely to be involved in his illness?
a. Antibody, complement C5-9
b. Circulating immune complexes; complement C5a, neutrophils
c. Cytotoxic T lymphocytes
d. IgE, mast cells, histamine, cytokines
e. Lymphocytes, cytokines, macrophages
Answer:
The correct answer is: E) Lymphocytes, cytokines, macrophages.
Explanation:
Given the symptoms and how much time they took to appear, the 14-year-old boy seems to be having delayed-type hypersensitivity (also called Type 4 hypersensitivity), causing a reaction called Contact Dermatitis. Type 4 is the only type of hypersensitivity that does not require the intervening of an antibody to occur as it happens because of hapten-specific T cells that will generate inflammation and the tissue damage that is usually accompanied by it.
Delayed-type hypersensitivity is characterized for happening at least 48 hours after the contact with the antigen, and will involve activated T lymphocytes (specifically CD4+ Th1), which will secrete cytokines (most importantly Interferon Gamma and IL-2) thus attracting macrophages to the tissue to phagocyte the antigen and produce inflammation.
The antibiotic susceptibility testing result of Staphylococcus aureus showed absence of growth on the zones of penicillin, ampicillin, tetracycline, chloramphenicol disk. Interpret the result.
Answer:
See Explanation
Explanation:
We define antibiotic susceptibility testing as an evaluation of the ability of antibiotics to inhibit bacterial growth. This test is necessary because certain bacteria may have developed resistance to certain antibiotics.
Hence, if the antibiotic susceptibility testing result of Staphylococcus aureus showed absence of growth on the zones of penicillin, ampicillin, tetracycline and chloramphenicol disk, then it implies that these antibiotics are all largely effective against Staphylococcus aureus and could be used for treatment of Staphylococcus aureus infection.
_________ is a form of spina bifida in which a saclike cyst filled with CSF protrudes through the spinal defect but does not involve the spinal cord. a. Meningomyelocele b. Meningocele c. Myelomeningocele d. Spina bifida occulta
Answer:
b. Meningocele
Explanation:
Meningocele is a congenital deformity where there is a sac protruding from the spinal column, which is not related to acute neurological conditions. Thus, meningocele is caused by a protrusion of the meninges (i.e., membranes that envelop the brain and spinal cord) and cerebrospinal fluid but without accompanying nervous tissue. About 1,500 babies each year born with this type of spinal birth defect. Moreover, spina bifida occulta is a mild type of spina bifida caused when one or more vertebrae do not fully form during pregnancy. Finally, meningomyelocele (also known as myelomeningocele) is a severe type of spina bifida caused when the spinal cord and nerves develop outside of the body.
Answer:
b. Meningocele
Explanation:
Meningocele is a form of spina bifida in which a saclike cyst filled with CSF protrudes through the spinal defect but does not involve the spinal cord.
In which direction will the object pictured below be accelerating?
The dissolved waste molecules produced by the cells are removed primarily from the blood by the what?
A. large intestine
B.kidneys
C. skin
D. lungs
. The area of particle 1 is
2.5 mm². The area of particle 2
is 0.5 mm². The area of particle
1 is how many times as big as
the area of particle 2?
Answer:
The correct answer is - 5 times
Explanation:
Given:
area of P1 = 2.5
area of P2 = 0.5
Solution:
Let assume:
area of P1 is x times of the area of P2
then the equation would be:
=> 2.5 = x*0.5
=> 2.5/0.5 = x
=> 5 = x
Thus, area of P1 is 5 times to the area of P2
4. Ask a question about the relationship between two objects
Answer:
Is the two objects depends on each other or not?
Explanation:
If one body depends on the other object it means that there is a direct relationship between these two objects because if increase occur in one object, the value for other object also increases and vice versa while on the other hand, if the two objects independent or does not depend on each other, there is no direct or inverse relationship present among each other that effect one another.
Which type of bond is illustrated in the following image?
covalent
ionic
metallic
unknown
Answer:
covalent bonding
Explanation:
In the picture below the purple circles represent salt molecules. Which way would
the water molecules move across the membrane
Right to left toward the higher concentration of salt
Left to right away from the higher concentration of Salt
What is the answer to number 1
Answer:
TTT GCC AGT
Explanation:
Select all the correct answers.
Adrian caught a virus while staying with his grandmother. A few years later. his mother and sister got the same virus. This virus could spread
through touch and direct contact. However, Adrian did not contract the virus
Why did he not get sick?
this time, even though he was living with his mother and sister.
2 Adrian's adaptive immunity remembered the antigens from the virus and gave him lifelong
immunity to it
- Adrian's innate immunity remembered the antigens from the virus and gave him lifelong immunity
to it.
.
Adrian's skin layer recognized the antigens and attacked them, which prevented the occurrence of
the virus again.
0
Adrian's innate immunity identified antibodies specific for the virus and targeted them against the
antigen.
0
Adrian's adaptive immunity produced a higher amount of specific antibodies for the antigen,
preventing the virus.
Answer:
The answer is A.
Explanation:
Adaptive immunity recognizes antigens of viruses.
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant over the white allele (b). Two heterozygous guinea pigs are crossed. Draw a genetic diagram with the genotypic, phenotypic and ratio information of the P₁ and F ₁ generations of this cross.
Answer:
See
Explanation:
Given:
Brown allele (B) is dominant over the white allele (b).
It will be assumed that the alleles are not related to the X and Y chromosomes.
See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)
For both parents hetero-zygous,
P1:
Genotype: Bb (100%)
Phenotype: brown (100%)
F1:
Genotypes : BB, Bb, bB and bb in equal proportions, i.e.
BB (25%), Bb (50%), bb (25%)
Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)
state the role of alcohol in this investigation
Define Vascular tissue?
Answer:
Vascular tissue is a complex conducting tissue found in vascular plants that is made up of several cell types. The xylem and phloem are the two main components of vascular tissue. Internally, these two tissues carry fluid and nutrients.
OAmalOHopeO
Need help please and thanks
Answer:
The concentration of the oxygen is higher outside of the cell and the oxygen will move inside or towards the cell since it is higher in the outside and lower inside the cell and the transport is passive and it doesn't require energy.
what kind of graph is this?
Answer:
Explanation:
financial chart
Which word best describes the response the seedlings are shown?
There are three criteria that scientists use to classify kingdoms. What are they?
Answer: cell type, ability to make food, and number of cells in their body
Explanation:
Most of the solar radiation absorbed by Earth's surface is later radiated back into space as to which type of electromagnetic radiation?"
Answer:
The sun's visible wavelengths of radiation pass easily through the atmosphere and reach Earth. Approximately 51% of this sunlight is absorbed at Earth's surface by the land, water, and vegetation. Some of this energy is emitted back from the Earth's surface in the form of infrared radiation
Explanation:
Which of the following cells do not have specialized tasks in an organism? 1.) prokaryotic cells 2.) eukaryotic cells 3.) animal cells 4.) plant cells
Answer:
A. Prokaryotic cells
Explanation:
Prokaryotic cells don't have organelles
Which statement best describes the components of nucleic acids?
Answer:
The statement which describes best about nucleic acids is: They are made up of 'nitrogen bases', 'sugars' and 'phosphates'.
Explanation: Nucleic acids are biomolecules that are known to all forms of life.
g The lac operon - TRUE or FALSE Before the induction of the lac operon, lactose transporters are already present in the cell membrane. TRUE Lactose initially enters the cell using a transport protein.
Answer:
True
True
Explanation:
Lactose transporter are not absent from the membrane before induction. They are already present in the cell membrane. Lactose requires some transport medium, for this reason protein acts as transport medium for the lactose.
The vertical acis on a graph is called the y-axus for scientific data what usually placed along the y-axis
Answer:
dependent variables
100 POINTS!! Please answer all questions, will report you if you don't give a serious answer
Answer:
1. b
2. l
3. i
4. c
5. k
6. y
Explanation:
When one glucose molecule travels through the glycolysis processes, four molecules of ATP are generated. Is it accurate to suggest that glycolysis produces two ATP molecules?
Answer:
No
Explanation:
Technically, this is inaccurate. To say that glycolysis produces two ATP molecules strays from the input of ATP needed. Overall, 4 ATP molecules are produced during glycolysis. However, there is an input of 2 ATP molecules at the beginning. Therefore, the correct statement would be that glycolysis produces 2 net ATP molecules, not that glycolysis produces 2 ATP molecules. (The word net makes a big difference!!).