Answer:
Mother: higher risk of an improper chromosome division
Father: higher risk to suffer point mutations in sperm cells
Explanation:
A trisomy is an alteration in the chromosome number (i.e., an aneuploidy), and occurs when a cell receives three chromosomes instead of two. The risk of aneuploidies -including trisomies- increases with the mother's age due to the fact that older eggs have a higher chance of dividing unequally, thereby leading to an imbalanced number of chromosomes between daughter cells. Moreover, a point mutation is defined as a genetic modification where a single nucleotide is changed in the DNA sequence. It has been shown that point mutations in children are determined to a large extent by the father’s age, which are due to mutations in germline cells (i.e., sperm cells) that were passed to the progeny. A child born from a father who is 20 years old exhibits on average 40 point mutations, whereas a child born from a father who is 40 years old has typically twice the point mutations on its genome.
Which of the following natural processes is most likely to create large mounds of sand along the coastline?
Water eroding sand from the coastline
Wind depositing sand from other locations
Wind causing erosion faster than deposition Water weathering sand from the nearby rock
Brainliest will get 50 points
Answer: Water eroding sand from the coastline
Water eroding sand from the coastline is the natural processes is most likely to create large mounds of sand along the coastline
What are the properties of water ?Water is the chemical substance having chemical formula H2O, one molecule of water consist of two hydrogen atoms which are covalently bonded to a single oxygen atom.
The physical property of Water are, it is a colorless and tasteless liquid, have extensive hydrogen bonds resulting in unusual properties in the condensed form.
This also have high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment, etc.
Water is a great solvent and helps in the transportation of ions and molecules required for metabolism, has high latent heat of vaporization helps in the regulation of body temperature.
It is Amphoteric nature can act as both acid and base means that it is amphoteric in nature, it is Electropositive elements which reduce water to hydrogen molecule and it is the source of hydrogen.
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Mitosis occurs in all the cells of the organism.
Answer:
Mitosis is the process in cell division by which the nucleus of the cell divides (in a multiple phase), giving rise to two identical daughter cells. Mitosis happens in all eukaryotic cells (plants, animals, and fungi). It is the process of cell renewal and growth in a plant, animal or fungus.
Unlike passive transport, active transport requires what
Answer:
Chemical Energy
Explanation:
Active transport needs chemical energy in order to transport an object across a membrane.
Passive transport doesn't need energy in order to transport an object across a membrane.
The range of a visible wavelength is
a 200 to 300 nm
b 50 to 250 nm
C С
400 to 700 nm
d 800 to 950 nm
Answer:
C- 400 to 700 nanometers!
Explanation:
The actual range is 380-700 nm, but the closest to that is 400-700 nm!
Which statement best describes the difference between the crust and the lithosphere?
A. The lithosphere contains both the crust and the upper most rigid layer of the mantle
B. The lithosphere contains both the crust and the inner core
C. The lithosphere contains both the core and the mantle
D. The lithosphere contains both the crust and the ocean
Answer:
A. The lithosphere contains both the crust and the uppermost rigid layer of the mantle
Explanation:
The statement that describes the difference between the crust and lithosphere is that the lithosphere contains both the crust and the uppermost rigid layer of the mantle.
The earth is divided primarily into 3 concentric layers; crust, core, and mantle. The crust is the outermost layer of the earth. It is a very thin layer. The lithosphere, on the other hand, is the crust plus the upper rigid layer of the mantle. This is the main difference between the crust and lithosphere.Plz help it’s due tomorrow
Which of the following is NOT a function of the cell membrane
a. contains genetic information
b. provides a boundary for the cell
c. controls transport
d. provides protection for the cell
why do we need to study, talk and explore the Male and Female Sexual Anatomy
SER carries out all of the following activities, EXCEPT:
a. lipid production
b. detoxification
c.connects RER to GA
d. produces RNA
Answer:
The correct answer is - option D. produces RNA
Explanation:
SER or smooth endoplasmic reticulum is a membranous, tubular organelle present in most of the eukaryotic cells. These ER lacks the ribosome on their surface as rough ER.
The major functions of this organelles are to produce lipid, hormones, protein, steroids for the complete cell. SER also carries detoxification of the metabolic byproducts of the cell. It acts as a bridge or connector between RER to Golgi apparatus.
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What types of water are the most affected by nonpoint source pollution?
Groundwater is susceptible to pollutants. Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use.
What happends if a cell were to have an interphase 1 and 2 when doibg meiosis
Explain, in paragraph form, how each factor impacts on your career choice
Answer:
Factors such as the influence of the family, that of peers and of the school itself, the information available through school visits to places of work, and work experience of students, the availability of occupational information and of the demands for jobs; the difference in age, gender, and personal characteristics ...
Explanation:
how do eumelanin and pheomelanin affect our skin color?
Answer:
There are two types of melanin--eumelanin and pheomelanin. In general, the more eumelanin in your skin, the darker your skin will be. People who make more pheomelanin than eumelanin tend to have lighter skin with freckles. Like many other traits, the amount and kind of pigment in your skin is controlled by genes
Explanation:
SELECT ALL THAT APPLY. Which two elements make up the water cycle?*
2 points
Carbon
Sulfer
Nitrogen
Gold
Phosphorus
Hydrogen
Oxygen
Helium
This is a required question
Answer:
Maybe
hydrogen and oxygen
Indicate which the following statements are true.
a. During glycolysis, glucose molecules are hydrolysed to yield CO2 and H2O
b. The cleavage of fructose 1,6-bisphosphate by phosphofructokinase yields two molecules of glyceraldehyde 3-phosphate.
c. When subjected to anaerobic conditions, glycolysis in mammalian cells continues and causes a buildup of pyruvate in the cytosol.
d. In the mitochondrial matrix, the pyruvate dehydrogenase complex produces CO2, acetyl-CoA and NADH.
e. Fatty acids can be transported into mitochondria and converted into acetyl-CoA, FADH2 and NADH
Answer:
The correct answer is: D
Explanation:
(a) This process does not occur during glycolysis, it occurs after glycolysis since pyruvate is generally accepted to be the last product of glycolysis
(b) Phosphofructokinase does not produce two molecules of glyceraldehyde 3-phosphate but rather produces of one molecule of glyceraldehyde 3-phosphate and dihydroxyacetone phosphate
(c) During anaerobic conditions in mammals, pyruvate is converted to lactate by the enzyme lactate dehydrogenase. It can actually cause the accumulation of lactic acid/lactate in the muscle which causes muscle fatigue but does not cause buildup of pyruvate in the cytosol.
(d) In the fate of pyruvate, the pyruvate dehydrogenase complex produces CO2, acetyl-CoA and NADH in the mitochondrial matrix. The acetyl-coA produced thereof serves as a precursor for the citric acid cycle.
Circle the word that best completes the statement about cell theory.
6. The cell theory states that:
i. All organisms are made of organelles / cells.
ii. All existing cells are produced by other living dead cells.
111. The atom cell is the most basic unit of life.
7. Cell theory is one of the great unifying theories of biology / chemistry.
MAIN IDEA: Prokaryotic cells lack a nucleus and most internal structures of
eukaryotic cells.
Question reformatted:
Circle the word that best completes the statement about cell theory.
6. The cell theory states that:
i. All organisms are made of organelles / cells.
ii. All existing cells are produced by other living / dead cells.
iii. The atom / cell is the most basic unit of life.
7. Cell theory is one of the great unifying theories of biology / chemistry
Answer:
6. The cell theory states that:
i. All organisms are made of cells.
ii. All existing cells are produced by other living cells.
iii. The cell is the most basic unit of life.
7. Cell theory is one of the great unifying theories of biology
Explanation:
Cell theory is one of the central theories of biology and is universally accepted. It states that all organisms are cellular - that is they are made of cells. It also states that all living things come from other living cells (not spontaneously, or from dead cells). The cell is the most basic unit of life, organisms can be unicellular, but no living thing is 'less' than that.
What are the consequences of uncontrolled sexuality?
Which of the following things is common to all living organisms?
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
Explain how horned toads squirting blood from their eyes is a particularly good defense against coyotes.
Answer:
A stream of nasty-tasting blood squirts from the toads eyes, straight into the coyote's mouth. The coyote steps back, shaking its head from side to side in disgust. It retreats, wiping its muzzle, while the uninjured toad skitters away to safety.
Answer:
Horned toads squirting blood from their eyes is a good defense against coyotes because squirrels are much smaller than coyotes so they can't fight back. The blood scares the coyotes and makes them run away so that the squirrel can survive.
Explanation:
i used this exact answer and got 100 on the quiz.
If two fruit flies, heterozygous for a gene that codes for eye color , were bred together and had 200 offspring , about how many would have the dominant phenotype
Answer:
75%
Explanation:
Assuming that eye color follows mendellian inheritance, two heterozygous parents would breed as follows:
Ee x Ee
Punnett sqaure
E e
E EE Ee
e Ee ee
All organisms possessing allele E will express dominant phenotype.
From two fruit flies, 75% would have the dominant phenotype.
What do you mean by phenotype?The phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes.
Phenotype refers to an individual's observable traits, such as height, eye color and blood type. A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
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What effect do you changing the number of enzymes will have on the amount of product made for every second
Answer:
Enzymes increase the reaction rate, but as the enzymes become saturated the reaction rate levels.
How can you reduce the amount of waste you send to landfills?
A. Recycle packaging that comes with purchases.
B. Place broken electronics in the garbage can.
C. Use disposable dishes and cutlery at parties.
D. Bag yard waste each time you mow or prune.
Answer:
the answer is C. Recycle packaging that comes with purchases.
Explanation:
You can reduce the amount of waste you send to landfills by recycling the packaging that comes with purchases.
What do you mean by Landfills?Landfills may be defined as a system of garbage and trash disposal in which waste is buried between layers of earth.
The materials of packaging compounds are non-biodegradable that can not be degraded. These materials are buried deep in the earth and cause pollution.
Therefore, you can reduce the amount of waste you send to landfills by recycling the packaging that comes with purchases.
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Which evidence from the Hershey-Chase experiment demonstrated that DNA, not protein, is the genetic material
Answer:
The evidence from the Hershey-Chase experiment demonstrated that DNA, not protein, is the genetic material DNA contains phosphorus, but protein does not was as result of some analysis in which it was discovered that Protein contains sulfur and DNA does not.
This was what led to the use of radioactive phosphorus and radioactive sulfur in self-identification.
Aristotle's ladder of nature, and the Great Chain of Being, were concepts suggesting __________.
a) life evolved on other worlds and was later transported to Earth down a celestial ladder
b) the accurate evolutionary view that all species are related, with each providing an evolutionary link (i.e. step in the ladder) to its immediate ancestor
c) the mystical teleological view that all species were created in a fixed order, from least to most perfect
d) life is a painful and purposeless experience of endless steps, but death brings release from the ladder of life
Answer:
c) the mystical teleological view that all species were created in a fixed order, from least to most perfect
Explanation:
The teleological argument states that God created all living things, this belief is also known as intelligent design or creationism. This belief might be considered to be opposed to the mechanism of natural selection proposed by Darwin to understand how species evolve, which can explain the complexity of living things. The creationism was firstly proposed by Socrates in ancient Greece. Subsequently, Plato (who was a student of Socrates) and Aristotle (who was a student of Plato) substantially enhanced the arguments of the intelligent design.
The range of wavelengths for visible litis.
Answer:
400-700 nm
Explanation:
While the actual answer is 380 to 700 nm, that is the closest to it.
Which of these often describes an ecosystem with high biodiversity
challenging to survival
resilient
susceptible to disease
competitive
Answer:
Among those resilient often describes an ecosystem with high biodiversity
One ounce is equivalent to
10 grams
20 grams
30 grams
40 grams
Answer:
30 grams
Explanation:
1 ounce= 28.3495 grams
If you round it, it will be the closest to 30 grams.
Hope this helps!
Which organelle makes lipids?
Answer:
endoplasmic reticulum
Explanation:
The endoplasmic reticulum is an organelle that is responsible for the synthesis of lipids and the modification of proteins.
The movement of glucose across the membrane through facilitated diffusion is a form of passive transport because
Answer:
Explanation:
Glucose is a 6 carbon sugar molecule that provides energy needed by cells. Since glucose is a large molecule, it is difficult to be transported across the membrane through simple diffusion. Therefore, it diffuses across membranes through facilitated diffusion down the concentration gradient.