Answer:
A gene pool is a collection of all the genes in a population. This can be any population - frogs in a pond, trees in a forest, or people in a town.
Explanation:
Need help on this *URGENT*
What determines the code, or information, of a DNA molecule?
A - the structure of nitrogen bases
B- the color of nitrogen bases
C- The sequence (order) of nitrogen bases
D- the frequency of nitrogen bases
Answer:
C- The sequence (order) of nitrogen bases
Explanation:
Does dna determine your traits
Answer:
yes
Explanation:
because i'm smart
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Only a few natural elements have a greater density than gold. They are: ??
15 POINTS AND BRAINLIEST FOR CORRECT ANSWERS!!!
Plutonium
Neptunium
osmium
let me know if it's correct or not, these were the only ones I could think of.
Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.
What is an element?
An element is define as a type of substance that is impossible to break into smaller pieces by the help of chemical process. There are several rules that should be followed at the time of assinging name of the elements. The first rule is name of the element is not a proper noun. The second rule is the symbols of the element that must be of one or more than one symbol.
Density is define as the mass per unit volume it means that 1 kg mass present in 1 meter cube is called density, density is also states that the how compact an material.
Mathematically
Density = mass/volume
S.I unit of density is kg/m^3
Density is higher in solid as compare to liquid and density of liquid is higher than gas so density is in order of SOLID>LIQUID>GAS. So we know that solid is compact in nature as compare to liquid and gas.
Therefore, Few natural elements have a greater density than gold are plutonium, neptunium, and osmium.
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What are Hox genes?
A. genes that can produce large changes in adult animals during the embryological development
B. genes that are most often used to calculate a molecular clock
C. genes that have never gone through the process of crossing over
D. duplicate genes that are always responsible for speciation
Answer:
a
Explanation:
I haven't heard of them
Answer:
A.
Explanation:
Hox genes encode and correct positions of body structures making sure they form in the correct places in the body.
Every 3 bases (a codon) in the RNA codes for 1 amino acid.
Example: CCA codes for proline (pro)
2. Write the amino acid that corresponds to each codon.
CGG
CUG
AGC
CAG
Answer:
Lysine
Leucine
Serine
Glutamine
Super easy. Please help
Answer:
Identical twins tend to be more similar to each other than fraternal twins do.
Explanation:
how does the cell work
What method do scientists use to trace plant and animal extinctions through Earth's history
Answer:
Paleontology is the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock.
Explanation:
List the four steps of mitosis in order. Describe what is happening during each phase.
Answer:
The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.
Explanation:
air passes from the nose into the bronchi true or false?
Answer:
True
Explanation:
The right lung has 3 sections called lobes and is a little larger than the left lung, which has 2 lobes. The bronchial tubes divide into smaller air passages called bronchi. The functioning of the lungs is discussed in detail.
Can someone please help me please
Answer:
I think so answer is D
Explanation:
I hope it helps you
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The effect of disorder of checkpoints proteins and cell cycle regulation
I need help!!!!!!???
Answer:
LEARNING OBJECTIVES
Identify important checkpoints in cell division
Explain how errors in cell division are related to cancer
The length of the cell cycle is highly variable, even within the cells of a single organism. In humans, the frequency of cell turnover ranges from a few hours in early embryonic development, to an average of two to five days for epithelial cells, and to an entire human lifetime spent in G0 by specialized cells, such as cortical neurons or cardiac muscle cells. There is also variation in the time that a cell spends in each phase of the cell cycle. When fast-dividing mammalian cells are grown in culture (outside the body under optimal growing conditions), the length of the cycle is about 24 hours. In rapidly dividing human cells with a 24-hour cell cycle, the G1 phase lasts approximately nine hours, the S phase lasts 10 hours, the G2 phase lasts about four and one-half hours, and the M phase lasts approximately one-half hour. In early embryos of fruit flies, the cell cycle is completed in about eight minutes. The timing of events in the cell cycle is controlled by mechanisms that are both internal and external to the cell.
Explanation:
Regulation of the Cell Cycle by External Events
Both the initiation and inhibition of cell division are triggered by events external to the cell when it is about to begin the replication process. An event may be as simple as the death of a nearby cell or as sweeping as the release of growth-promoting hormones, such as human growth hormone (HGH). A lack of HGH can inhibit cell division, resulting in dwarfism, whereas too much HGH can result in gigantism. Crowding of cells can also inhibit cell division. Another factor that can initiate cell division is the size of the cell; as a cell grows, it becomes inefficient due to its decreasing surface-to-volume ratio. The solution to this problem is to divide.
Whatever the source of the message, the cell receives the signal, and a series of events within the cell allows it to proceed into interphase. Moving forward from this initiation point, every parameter required during each cell cycle phase must be met or the cycle cannot progress.
Regulation at Internal Checkpoints
It is essential that the daughter cells produced be exact duplicates of the parent cell. Mistakes in the duplication or distribution of the chromosomes lead to mutations that may be passed forward to every new cell produced from an abnormal cell. To prevent a compromised cell from continuing to divide, there are internal control mechanisms that operate at three main cell cycle checkpoints. A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. These checkpoints occur near the end of G1, at the G2/M transition, and during metaphase
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Glomerular filtrate comprises of water, glucose, amino acids and creatine. Which among the above are reabsorbed actively and rapidly by blood?
Answer:
Glucose, amino acids are rapidly reabsorbed actively by blood.
Explanation:
If the amount of CO2 in the atmosphere increases, do we expect to record an increase or decrease in the pH of the ocean? Why?
Answer:
As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.
Hello can someone help?
Im confused
Answer:
Maybe B
Explanation:
Hi! I'm not sure... If you want to take the risk, go ahead... But IF it's correct pls mark me the brainliest
What percentage of those struck by
lightning, live to tell about it?
of every ten people struck by lightning, nine will survive and tell the tale.
Which of the following is a true
statement about queen ants?
a. They have shorter lifespans than other types of ants.
b. They are the only females that live in ant colonies.
c. They are the only types of ants that can lay eggs.
d. They are the only ants that protect defenseless
larvae.
Answer:
c. They are the only types of ants that can lay eggs.
Mitosis results in _______ cells and meiosis results in _______ cells. The term that applies to the cells produced in mitosis is __________, because they contain all of the chromosomes, while the term given to cells produced in meiosis is __________ because they only have half of the original chromosome number.
Answer:
1 in two daughter
2 in four daughter
3Diploid
4haploid
Project: Earths layers
Answer:
here hope helps
Explanation:
What are the answers for questions 4 and 5?
Answer:
4. D (enzymes 1 and 3 works equally well in an acidic and alkaline environment respectively)
5. C. 2; 7; 9.5
Explanation:
The image attached to this question shows a graphical representation of the pH ranges for three enzymes. According to the image;
- Enzyme 1 reached its peak reaction rate at pH 2 (acidic)
- Enzyme 2 reached its peak reaction rate at pH 7 (neutral)
- Enzyme 3 reached its peak reaction rate at pH 9.5 (basic)
This result means that enzymes 1, 2 and 3 will work well and effectively at an acidic, neutral and alkaline environment respectively. Likewise, the optimal pH level for enzymes 1, 2 and 3 are 2; 7; and 9.5 respectively.
Why would the atomic number be better to identify an element than the atomic mass?
Answer:
because the atomic number tells you how many protons and neutrons there are
Explanation:
What conditions allowed so many different kinds of mammals to
evolve during the Cenozoic Era?
A. Grasses evolved providing food to larger grazing animals, no dinosaurs which made way for mammals
B. Overpopulation of ocean algae allowed for more fish to thrive following more species of fish to exist
C. No dinosaurs so mammals were forced to evolve or die
D. More macrobiotic organisms caused the evolution process to happen at a quicker rate
Answer:
A. Grasses evolved providing food to larger grazing animals, no dinosaurs which made way for mammals
what do the arguments for and against the use of stem cells in medical research share?
Answer: Stem cell research can potentially help treat a range of medical problems. It could lead humanity closer to better treatment and possibly cure a number of diseases:
Parkinson’s Disease
Alzheimer’s Disease
Heart Diseases, Stroke and Diabetes (Type 1)
Birth Defects
Spinal Cord Injuries
Replace or Repair Damaged Organs
Reduced Risk of Transplantation (You could possibly get a copy of your own heart in a heart-transplantation in the future
Stem cells may play a major role in cancer
Better treatment of these diseases could also give significant social benefits for individuals and economic gains for society
Cons
"We should not mess with human life."
"Humans should not be trying to play God"
Some argue that stem cell research in the far future can lead to knowledge on how to clone humans. It is hard to say whether this is true, but we have seen devastating consequences of other research-programs, even with good intentions, such as nuclear research.
Stem cells are cells, which have the ability to transform into many different types of cells. The stems cells have the potential to specialize in any type.
The stem cells are extensively used for research, curing diseases, and especially in developing prosthetics. The stems cells provide new cells for the growth and development of the replaced and damaged cells.
The arguments for and against the use of stem cells are:
Arguments for the use of stem cells in medical research are:
1. The stem cells enhance the growth and development of healthy skin tissue.
2. The cells can be used to enhance the production of collagen.
3. The study of stem cells helps in understanding the causes of disease.
Arguments against the use of stem cells in medical research are:
1. The use of stem cells for research harms human life and dignity.
2. People believe that killing blastocysts or stem cells is equal to taking a human life.
3. However, the transplant of stem cells can be rejected by the patient's body, therefore, can cost the life of the patient.
Therefore, the use of stem cells for research can be fruitful or disadvantageous.
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A small primate is observed in South America. It has a prehensile tail, spends most of its time in the trees, and is fairly small. What type of primate is it? HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight A. Lemur B. Tarsier C. New World monkey D. Old World monkey
Answer:
C
Explanation:yeah
The correct answer is New World monkey as is observed in South America. It has a prehensile tail, spends most of its time in the trees, and is fairly small.
On one hand, a few species of New World monkeys own prehensile tails, which means they are able to use their tails to understand or maintain directly to objects (2). Their tails can resource those monkeys in locating and consuming meals withinside the cover in addition to transferring among the trees, as their tails offer greater help and balance.
The formal time period for the taxonomic organization containing all of the New World Monkeys (NWMs) is Platyrrhini. The NWMs diverged from the Old World monkeys and apes (Catarrhini) round forty million years ago (Perelman et al. 2011). Ancestral species are idea to have migrated to the Americas on rafts of plants or through island hopping (Fleagle 2013). The extant species of NWMs are presently labeled into 5 families, twenty genera, 156 species, and 204 taxa. However, the taxonomy of numerous taxa is debated withinside the literature and, therefore, this type is concern to change.
What is the New World monkey living area?
Many of the monkeys scampering across the forests of Central and South America have some thing unique on their butts-- a further hand. Well, now no longer exactly. It's a prehensile tail-- a greedy appendage that enables the animals navigate the tall and treacherous cover on the lookout for end result and leaves .
Hence concluded that the New World monkey have a prehensile tail, spends most of its time in the trees, and is fairly small.
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Kerstin is getting ready to graduate high school. She wants to become a cardiac perfusionist. Which best describes the path she should take to her career?
Answer:
four-year degree , master’s degree , certification exam from ABCP
Explanation:
Answer:
She should do a four-year degree , master’s degree , certification exam from ABCP
Explanation:
What is involuntary muscle
Answer:
involuntary muscles can be defined as the muscles that functions or contracts without conscious control and are controlled by the autonomic nervous system.
Answer:
involuntary: A muscle movement not under conscious control e.g. the beating of the heart.
Choose which statement best describes an element.
A. Anything that takes up space
B. A pure substance that cannot be broken down into other substances by chemical means.
C. Water
D. Atom has a nucleus with neutrons and protons in it.
Answer:
B
Explanation:
Elements are pure substances that cannot be broken down into other substances by chemical means .
hey guys im not begging for help here but ive been stuck for 10 minutes and my time is running out!
Answer is B. You can tell that from the table.
The diploid cells of a radish plant contain 18 chromosomes. How many chromosomes are in a radish plant's haploid cells?
Answer:
9
Explanation:
The diploid chromosome number for a radish is 18 and the diploid chromosome number for cabbage is also 18. The haploid number for these species is nine. Therefore, the gametes of the radish and cabbage contain nine chromosomes.