Answer:
Mutagen
Explanation:
Answer:
Mutagen
Explanation:
In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level.
All living things are made of one or more cells, and those cells are either eukaryotic or prokaryotic. You, like all animals as well as plants and fungi, have eukaryotic cells. That means your cells have a nucleus. Inside that nucleus, genetic material (DNA) is coiled into thread-like chromosomes. Organisms with eukaryotic cells are called eukaryotes. Prokaryotic cells, on the other hand, are more simple. They lack specialized, membrane-bound organelles, like mitochondria, and they do not have a nucleus. Their genetic material is usually in a loop that floats in the cytoplasm. That loop is called the nucleoid. Prokaryotic cells are much smaller than eukaryotic cells. All bacteria are unicellular, made of just one cell, and they are prokaryotes. Some bacteria have flagella, tail-like structures on the end that help them to move.
How are bacteria cells different from human cells?
A
Bacteria cells do not contain a cytoplasm.
B
Bacteria cells do not contain genetic material.
C
Bacteria cells are much bigger than human cells.
D
Bacteria cells are less complex than human cells.
what is it called when an mRNA strand is not copied correctly??
Answer:
It is called a genetic mutation whenever a mRNA strand is not copied correctly. This leads to things like cancer or tumors.
A scientist is trying to discover a new treatment to stop cancer cells from
dividing. In the cancer cells, which of these processes will stop if the
treatment is successful?
Answer:
mitosis is the correct answer
DNA’s job is to _______using a code made up of bases.
Answer: form
Explanation:
How does the girls digestive system (stomach and intestines) help her gain mass as she grows?
Answer:
it helps them have sex
Explanation:
yea you know heheheheh x0x
Whose device seeks to minimize the transfer of energy by conduction?
A
Liam
B
Aaliyah
C
Mateo
Offspring that are the result of sexual reproduction are best described by which of the following?
a The offspring contain fewer chromosomes than either parent because of meiosis
b The offspring contain all of the dominant genes found in the grandparents
c The offspring are genetically identical to the biological mother and father
d The offspring are genetically unique and contain a new combination of genes
Answer: d.
Explanation:
when someone
blows on
DNA
plants
Genetic
Factors
Answer: huh?
Explanation:
Ok, when blowing on a plants genetic factors, nothing really happens, this is because plants are adapted to wind.
what happens to the concentration of oestrogen at ovulation?
Answer:
When oestrogen rises to a high enough level it causes a surge in LH from the pituitary which causes ovulation where an egg is released from the follicle (Day 14 of the cycle). The follicle becomes the corpus luteum and this produces oestrogen and progesterone which inhibit FSH and LH production by the pituitary.
Explanation:
What's the structure of the spinal cord?
Answer:
The spinal cord is a long cylinder of nerves that runs from the base of your brain through the vertebral canal through the backbone. It is part of the central nervous system (CNS) along with the brain. It is divided into different segments. Each segment contains a pair roots made out of nerve fibres.
Explanation:
PLEASE PLEASE HELP I WILL MARK BRAINLIEST
How does the tapetum work
Answer:
The tapetum basically acts as a retroeflector that reflects light right back along it's path.
Explanation:
A regulated process that involves controlling the amount of proteins produced by a gene.
O gene expression
O translocation
O Cellular respiration
O Homeostasis
Which of the following artifacts could NOT be dated using Carbon-14
techniques?
O A stone spear tip
O A mummy
O Aleather water bag
O A cloth scroll
Answer:
a cloth scroll is the answer to the question
Define embryonic stem cells. Explain the pros and cons of Embryonic Stem Cells
Answer:
Embryonic stem cells are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization, at which time they consist of 50–150 cells.
Explanation:
Adult Stem Cells
Embryonic Stem Cells
Induced Pluripotent Stem Cells
Pros
Trans differentiate and and reprogramming of these cells is possible but is not well studied
Thought to be less likely to be rejected if used in transplants
Success has already been demonstrated in various clinical applications
Can maintain and grow for 1 year or more in culture
Established protocols for maintenance in culture
ESCs are pluripotent cells that can generate most cell types
By studying ESCs, more can be learned about the process of development
Abundant somatic cells of donor can be used
Issues of histocompatibility with donor/recipient transplants can be avoided
Very useful for drug development and developmental studies
Information learned from the “reprogramming” process may be transferable for in vivo therapies to reprogram damaged or diseased cells/tissues
Cons
Limitations on ASC ability to differentiate are still uncertain; currently thought to be multi or unipotent.
Cannot be grown for long periods of time in culture
Usually a very small number in each tissue making them difficult to find and purify
Currently there is no technology available to generate large quantities of stem cells in culture
Process to generate ESC lines is inefficient
Unsure whether they would be rejected if used in transplants.
Therapies using ESC avenues are largely new and much more research and testing is needed
If used directly from the ESC undifferentiated culture prep for tissue transplants, they can cause tumors (teratomas) or cancer development
Methods for ensured reproducibility and maintenance, as differentiated tissues are not certain.
Viruses are currently used to introduce embryonic genes and has been shown to cause cancers in mouse studies
which of the following reactions provides the chemical energy for most cell functions?
a. ATP - P --- ADP
b. ATP + P --- ADP
c. ADP - P --- ATP
b. AFP + P --- ATP
Answer:
ATP - P ADP
Explanation:
Here is your answer! ^-^
ATP - P --- ADP provides the chemical energy for most cell functions.
What do you mean by chemical energy ?The bonds of chemical molecules contain energy. Exothermic reactions are those in which chemical energy is released during the reaction, frequently in the form of heat.
The energy in meals is transformed into energy that the body's cells can utilise during cellular respiration.
A new substance may form and energy may be released when the molecules of chemical substances react chemically.
Energy is transferred to ATP during cellular respiration, which transforms glucose and oxygen into carbon dioxide and water.
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Compare how the structures of amoebas and Volvox allow them to explore their
environments and obtain energy.
Answer:
Ii like volvo's lol
Explanation:
List two ways in which salt is different from chlorine.
Answer:Chlorine — the standard chemical in pools — is used to keep harmful bacteria away from humans. In chlorine pools, the chemical is purchased in highly concentrated levels and added to the water. In salt water pools, the natural process of electrolysis turns the salt into chlorine.
Explanation:
Which of the following terms refers to the groupings of plants which consistently produce plants of the same types?
O Species
O Family
O Genus
O Variety
Answer:
species
Explanation:
I took the quiz
2. _____ diversity increases the chances that individuals will possess favorable traits needed to survive
changing environmental conditions.Immersive Reader
a. Species
b. Ecosystem
c. Biome
d. Functional
e. Genetic
Answer:C
Explanation:
what charge does the hydrogen end have?
Answer:
A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1.
Explanation:
Hope this helps
what group of people study or research carbon footprints??
Answer:
The study by Jones and RAEL director Daniel Kammen, a UC Berkeley
Explanation:
Hope this helps!
Which bonds could a single carbon atom have?
Choose the correct answer.
2 triple bonds
5 single bonds
a triple bond and a single bond
a triple bond and a double bond
A triple bond and a single bond is the bond which a single carbon atom can have and is denoted as option C.
What is Bond?This is referred to as the attraction which exists between atoms and are involved in the formation of substances in a chemical reaction.
Carbon on the other hand is am element with an atomic number of 6 and has four valence electrons present in its outermost shell. This means it needs four electrons to achieve a stable configuration which is why a single atom must have a total of four bonds which is a triple bond and a single bond, two double bonds etc.
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What are the functions of proteins in the cell membrane?
Answer:
For example, plasma membrane proteins carry out functions as diverse as ferrying nutrients across the plasma membrane, receiving chemical signals from outside the cell, translating chemical signals into intracellular action, and sometimes anchoring the cell in a particular location (Figure 4).
Explanation:
Please help thank you
Answer:
purity
Explanation:
What can be inferred about the osmosis of water in potato cells?
A. The cells stop gaining water by osmosis in the 0.2M solution, so the concentration of glucose in the potato cells must be greater than 0.2M.
B. The cells stop gaining water by osmosis in the 0.2M solution, so the concentration of glucose in the potato cells must be between 0.1M and 0.2M.
C. In the solutions where the cells lose water by osmosis, the original concentration of water in those cells must be less than the concentration of water in the solutions.
D. In the solutions where the cells gain water by osmosis, the original concentration of water in those cells must be greater than the concentration of water in the solutions.
Answer:
d
Explanation:
What is taxonomy? How is taxonomy based on evolution?
Answer:Explanation: taxonomy was invented with kingdoms, phylum, orders, families, genus, and species before evolution was proposed. Classical taxonomy is based on observable characteristics of organism, not on Darwinian evolution. Cladistics the most modern form of taxonomy is based on Darwinian evolution.
Explanation:
During which phase of the cell cycle does DNA replication occur?
It takes 83 mL of a 0.45 M NaOH solution to neutralize 235 mL of an HCI solution. What is the concentration of an HCI solution?
Answer:
168ml
Explanation:
It takes 83 mL of a 0.45 M NaOH solution to neutralize 235 mL of an HCI solution, than the concentration of HCl will be 0.158 mL.
What is concentration?The amount of a chemical substance in a mixture is expressed by the substance's concentration.
What is neutralize?
The interaction of H+ ions with OH- ions produces water in a neutralization reaction, which occurs whenever an acid as well as a base reacts to form water and salt.
Calculation of concentration.
Given data:
[tex]V_{1}[/tex] = 83 mL
[tex]C_{1}[/tex]= 0.45 M
[tex]V_{2}[/tex] = 235 mL
[tex]C_{2}[/tex] = ?
Concentration of HCl solution will be calculated by using the solution.
[tex]C_{1} V_{1} = C_{2} V_{2}[/tex]
where, C is concentration and V is volume.
Put the value of given data in above equation.
[tex]C_{2} =C_{1} V_{1} / V_{2}[/tex]
[tex]C_{2}[/tex] = (0.45 M)(83 mL) / 235 mL
[tex]C_{2}[/tex] = 0.158 mL.
Therefore, the concentration of HCl will be 0.158 mL.
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Tay-Sachs Disease is a rare recessive disorder. A male that is a carrier for Tays-Sachs marries a woman that does not have a history of Tay-Sachs in her family. Is it possible for their children to have this disorder.