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Answer:
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Related Questions
Write an experiment to show that sunlight is necessary for photosynthesis.
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Answer:
Explanationwe have two or three plants, they both get the same water every day they both get the same amount of soil and fertilizer, one is without sunlight and one is with, after a 2 weeks our results will be found
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In mice, apricot eyes is recessive to black eyes. Tail length is governed by another gene, linked to the eye color gene. Long tails is dominant to short tails. To determine the distance between the two genes, a double heterozygote is mated in a testcross and the classes of progeny produced were as follows:
Apricot eyes, Long tails 33
Apricot eyes, Short tails 20
Black eyes, Long tails 17
Black eyes, Short tails 30
Determine whether the heterozygous parent is in the cis or trans arrangement.
a. Cis
b. Trans
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Answer:
trans
Explanation:
From the given information:
The study observes the genes present in mice for eye color and tail length. Since both genes are linked, it implies that they exist in the same chromosomes.
Black eyes is dominant over apricot eyes
Let Black eye be B and apricot eyes be b
Long tail is dominant over short tail
Let long tail be L and short tail be l
If double heterozygote(homoozygous-recessive) engage in the testcross
Then:
From the result given:
The parental combinations are:
Apricot eyes, Longtail (bL / bl) = 33
Black eyes, Short tails (Bl / bl) = 30
The recombinant genes are:
Black eyes, Long tails (BL / bl) = 17
Apricot eyes, Short tails (bl / bl) = 20
The recombination frequency relates to the distance between the two genes which can be computed as:
= (20+17)/100
= 37%
Thus; the heterozygous parent is in trans arrangement.
Which of the following statements about the law of conservation of matter is correct?
O Matter cannot be created, destroyed or transformed
O Matter can be created and destroyed, while still being transformed
O Matter cannot be created or destroyed, it can only be transformed
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Answer:
3, Matter cannot be created or destroyed, only transformed
Answer:
matter cannot be created and or destroyed,it can only be transformed
Explain the processes that occur in the nucleus.
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Answer:
A nuclear reactor is driven by the splitting of atoms, a process called fission, where a particle (a 'neutron') is fired at an atom, which then fissions into two smaller atoms and some additional neutrons. ... The fissioning of atoms in the chain reaction also releases a large amount of energy as heat.
Explain why it is not advisable for two sickle cell carriers to marry.
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Answer:
it results in pleiotropic effect and caused death of an offspring.
Why do you think during the evolutionary process there was a correlation between brain size increasing while cecum size decreased in the omnivores?
How does insect respiration differ from that of vertebrate respiration? How do they manage to respire?
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Answer:
Brain size increase due to find out improved quality diets whereas cecum size decrease due to reduction of its need.
Explanation:
Brain size increased due to the need to increase the mental capacity of an organism in order to explore the environment for the survival such as search for improved quality diet and the cecum size decreased because omnivorous diet improved due to the reduction of its need as a component of the digestive system. Insects have different respiration system as compared to vertebrates because vertebrates uses lungs for respiration whereas the insects uses tracheal tubes for the absorption of oxygen and removal of carbondioxide gas.
Which product comes from protist
A. Yeast in sourdough bread
B. Mushroom on pizza
C. Cork in bulletin boards
D. Carrageenan in milk
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Answer:
C. The cork in bulletin boards
Explanation:
Cork is made primarily from a plant called Quercus suber (the cork oak).
Define the term akaryotes and give one example
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Answer:
These are cells without nucleus or nuclei.
Example: Red blood cells.
. Imagine the following scenario. A bacteriophage taken for the treatment of cholera infects a cholera-causing bacterium and temporarily enters the lysogenic stage. When the virus re-enters the lytic cycle, it includes some pieces of the bacterial DNA in its own genome. Specifcally, this DNA encodes information for making the cholera toxin. Imagine some of the possible consequences of this scenario. What will happen to the next bacteria that the virus infects
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Answer:
The virus will transfer the DNA encoding cholera toxin to the next bacteria it infects, which will make that bacteria cholera-causing.
Explanation:
The process described in this question is a kind of gene transfer in bacteria called TRANSDUCTION. Transduction is the transfer of fragments of DNA from one bacterium to another via a virus called bacteriophage.
As stated in this question, the virus (bacteriophage) infects a cholera-causing bacterium. The bacteriophage moves from lysogenic cycle to lytic cycle and includes some pieces of the bacterial DNA, which encodes information for making the cholera toxin, in its own genome.
This means that the cholera-making toxin DNA is now a part of the virus's genome and hence, will transfer it to the next bacteria it infects in a process called TRANSDUCTION. This will make that bacteria a cholera causing bacteria.
All of the following factors contribute to the differences in complex trait risk predictions between different laboratories, EXCEPT ____________. differing methods of combining risk from multiple genetic variants selection of different genetic variants for risk determination different assessments of environmental factors genotyping of different variants
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Answer:
different assessments of environmental factors
Explanation:
In humans, for predicting the future phenotype of any individual, the PSR is used.
A trait may be defined as the state of a character that is a distinct variation of the phenotypic characteristic of any organism.
The following factors contributes to the differences in the complex trait risk predictions in the different laboratories :
-- differing methods of the combining risk from the multiple genetic variants.
-- genotyping of the different variants.
-- selection of the different genetic variants for such risk determination.
Thus the factor which does not contribute is :
"different assessments of the environmental factors."
What is NOT an effect of growth hormone?
a. Growth hormone directly stimulates osteoblasts in the periosteum to promote appositional growth.
b. Growth hormone increases the rate of mitosis in the epiphyseal plate of growing bones.
c. Growth hormone promotes the closure of the epiphyseal plate.
d. Growth hormone increases the activity of osteogenic cells.
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C. Growth hormone promotes the closure of the epiphyseal plate.
The closure of the epiphyseal plate is NOT an effect of growth hormone (option c).
The epiphyseal plate is a layer of hyaline cartilage between the epiphyses and metaphyses at the ends of long bones.
The epiphyseal plate is completely closed when bone growth is completed (around age 18 to 21 years).
Different hormones (i.e., testosterone and estrogen) released at puberty initiate the closure of epiphyseal plates.
In conclusion, the closure of the epiphyseal plate is NOT an effect of growth hormone (option c).
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Lactase is an enzyme that is produced in the lining of the intestines. This enzyme helps the body speed up the
breakdown of carbohydrates that are found in dairy products, such as milk, yogurt, and cheese.
Which general function does lactase perform?
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Answer:
Regulation of cell processes
Explanation:
Lactase is an enzyme that helps in the breaking down of disaccharide sugar, lactose, found in many foods. It does it by converting the lactose into its component reducing sugars - glucose and galactose. This enzyme is produced by some special cells lining the intestinal walls of humans and forms a kind of chemical barrier known as brush border where foods must pass through before being absorbed. By so doing, foods are screened for the presence of lactose and any lactose is broken down before the foods are given a pass.
2. Explain two different ways that you could classify the following
items: banana, lemon, sandwich, milk, orange, meatball, salad.
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Answer:
Two different ways that you could classify the following items: banana, lemon, sandwich, milk, orange, meatball, and salad, are the following:
Fruits and not fruits, where the fruits would be banana, lemon and orange; and the non-fruits would be sandwich, milk, meatball and salad.
Food of animal and vegan origin, where the food of animal origin is sandwich, milk and meatball, and the vegan food is banana, lemon, orange and salad.
The following food items can be classified based on either plant or animal origins.
Classification of food productsFood is a substance that contains nutrients that is required for the growth and maintenance of the living organisms.
Food can be gotten from various sources which includes plant and animal sources.
Examples of plant sources are banana, lemon, sandwich, orange and salad
Examples of animal sources are milk and meatball. This is because it can be processed from cow and ram.
Therefore, the following food items can be classified based on either plant or animal origins.
Learn more about food sources here:
https://brainly.com/question/21896808
define cell and atom
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Answer:
Cell: All living organisms are made up of cells, which are the basic building components. Cells also carry the body's genetic material and have the ability to replicate themselves. Cells are made up of several components, each of which serves a particular purpose. Organelles, for example, are specialized structures that perform specific activities within the cell.
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Atom: Protons, neutrons, and electrons are the three subatomic particles that make up an atom. The nucleus, which is made up of protons and neutrons, is at the core of the atom, while electrons float around in a tiny cloud above it.
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what is 2 plus two and what is four plus four and what is five plus five and what is six plus six
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Answer:
2+2=4. 4+4=8. 5+5=10. 6+6=12.
Explanation:
I'll just explain one? It takes around 360 pages to fully prove 1+1=2 so I'll just explain it the way I do. Draw some tallies. Draw 2 tallies and 2 more next to them. Count the total tallies, and you should get 4. (Sorry about this)
What does a single colony of a pathogenic microbe represent?
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A clone
A species
A serotype
All answers are correct
No answers are correct
Question 9
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Answer:
clone
Explanation:
who do study edexcell certificate level? and can help be physics,chemistry and biology exam
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I have done GCSE sciences and also applied science a level so I could probably help you :)
Explain how animals may have influenced the evolution of terrestrial plants and vice versa
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2. What is the percentage likelihood that the couple will have a child that has the allele for cystic fibrosis
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Answer:
the answer I got for the question you asked is 75%
Which of the following terms describes the distribution of a particular allele
within a population?
A. Allele dominance
B. Allele strength
C. Allele frequency
D. Allele density
Please help me
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Answer:
Option : B Allele frequency...Explanation:
The answer is allelic frequency. This is also the fraction of a particular allele of a gene in the population. please marks me as brainliests..please for my answer please...