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Answer:
The RARA gene on chromosome 17 provides instructions for making a transcription factor called the retinoic acid receptor alpha (RARα). A transcription factor is a protein that attaches (binds) to specific regions of DNA and helps control the activity (transcription) of particular genes.
Explanation:
Chromosome 11 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome. Chromosome 11 spans about 135 million base pairs (the building material of DNA) and represents between 4 and 4.5 percent of the total DNA in cells.
I need help with this it’s due at 12:00 PM
Show different life cycle patterns with the help of near labelled diagram
Answer:
The life cycles of all sexually reproducing plants follow a pattern of alternation between a haploid, sexual generation called gametophyte with a diploid, asexual generation called sporophyte.
This phenomenon of alternation between gametophyte (n) and sporophyte (2n) in the life cycle of a plant is called alternation of generations (Hofmeister, 1851).
Alternation of generations is of two types- isomorphic and heteromorphy. In isomorphic (or homologous) type both the alternating generations are morphologically similar, while in heteromophic (or heterologous) type of alternation of generations both the generations of life cycle are morphologically dissimilar.
Explanation:
How have humans affected the Chesapeake Bay ecosystem food web?
Answer:
Algal blooms caused by pollution and the lack of oysters in the Bay has led to the decline of ocean floor algae, plants, and like sea grass and an overgrowth of bacteria. Jellyfish that were once rare are now common.
Explanation:
Hope thats helpful.
Which is the third stage of mitosis? (3 points)
Anaphase
Interphase
Metaphase
Telophase
Which of the following best describes DNA in a prokaryotic cell?
Nigel lives near a chemical plant that spews sulfur dioxide into the air. At first, Nigel could not stand the smell of the gas in the air. However, after some time, he no longer even notices the presence of the gas. What kind of tolerance has his body developed? a behavioral tolerance b. a physiological tolerance a genetic tolerance d. a physical tolerance
Answer: Genetic Tolerance
The answer is Genetic Tolerance because the definition of it is "Genetic resistance (or genetic tolerance) refers to the ability of certain organisms to endure environmental conditions that are extremely stressful or lethal to non-adapted individuals of the same species ."
Answer:
B.) A physiological tolerance
Explanation:
A solar eclipse occurs when the moon
1. passes into the penumbra of earth
2. passes into the umbra of earth
3. passes at a slight tilt between Earth and the sun
4. passes directly between Earth and the sun
is this statement true or false
Answer:
False, just over 80%
Explanation:
Over 80% of all invertebrates are grouped into the single phylum
Oxygen is transported by _____to the_____ where it is used to break down the ______ into water, carbon dioxide, and usable energy.
cells
heart
sugar
blood
The process of natural selection requires all of the following, except:
Group of answer choices:
A.) genetic inheritance through reproduction
B.) environmental pressure
C.) advanced or complex species
D.) variation of a trait
Answer:
C.) Advanced or complex species
When you make chocolate milk, milk is the __, and the chocolate powder is the __ the mixture is now called a __.
a. solute, solvent, solution.
b. solution, solvent, solute.
c. solvent, solution, solute.
d. solvent, solute, solution.
Answer:
I think it's A but im not sure?
Answer:
D. Solvent, Solute, Solution
Explanation:
When you make chocolate milk, milk is the solvent, and the chocolate powder is the solute the mixture in now called a solution.
8. What is the sex (gender) of this karyotype?
Answer:
male
Explanation:
because XX= female and XY = male you determine the gender in the last karyotype or however you spell it
Consider the generalized cladogram of fish.
A cladogram is shown. At point B, the organism shares jaws but not bones.
A fossilized fish is found that has jaws but no true bones. Where does this fossil belong on the cladogram?
A
B
C
D
Answer:
A
Explanation:
Answer:
D
Explanation:
yes
What is the name given to the pair of chromosomes that are the same in
which one comes from the mother and the other comes from the father?
neurons are activated by which of the following?
Answer:
Myelin sheaths protect, electrically insulate fibers and increase the speed of transmission of nerve impulses. What structural and functional type of neuron is activated first when you burn your finger? Unipolar (psuedounipolar) neurons that are sensory (afferent) neurons.
Answer:
A neuron is activated by other neurons to which it is connected. In turn, its own activation stimulates other connected neurons to activation
Explanation:
Based on the data provided, which of the following descriptions best identifies the types of
farms that are being compared?
Select one:
O a. Farm A is a free pasture farm for cattle, whereas Farm B is a free-range farm for poultry.
O b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.
O c. Farm A is a grass-fed pasture for beef production, whereas Farm B is a traditional
concentrated animal feedlot for cattle.
ction, whereas Farm B is a cage
O d. Farm A is a concentrated animal feedlot for beef
free farm for poultry.
Answer:
b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.
Explanation: the average days in any 12-month period suggest that farm b cages while farm a does not. The antibiotic usages for farm b also suggest it is an industrial (caged) farm because most cage-free and non-industrial farms do not rely on heavy use of antibodies.
The Farm A is a cage-free poultry farm while Farm B is an industrial poultry farm.
Farm A:
The caged day are zero means all birds can move freely in the farm area.They are not eat antibiotics to avoid infection.Farm B:
Most of the time in year, birds are caged. They fed antibiotic to all to avoid infection in the cage.Therefore, the Farm A is a cage-free poultry farm while Farm B is an industrial poultry farm.
To know more about poultry farm
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A mutation in the code for a trait may not always change the expression of that trait. What advantage does this provide cells?
1)Ribosomes can produce proteins more quickly.
2)Cells only need to make a limited number of proteins.
3)Proteins can switch tasks without a change in the DNA sequence.
4)Some changes in the DNA sequence will produce the same proteins.
Answer:
ribosomes can produce proteins more quickly
PLEASE DO NOT COPY OFF ANY WEBSITES ANSWER IN YOUR OWN WORDS
Why have organisms evolved to have vestigial body parts?
Answer:
Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose..
Hope it will help :)
Explanation:
What is an autotroph?
Select one:
An organism that eats other organisms for food.
An organism that does not need food.
An organism that eats itself for food.
An organism that can build its own food.
An autotroph is an organism that can build its own food
Answer:
option D is correct answer of this question
Which mRNA sequence complements the DNA sequence below?
The right half of a D N A molecule
Four m R N A molecules
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answer:
sequence c
Explanation:
i just took the biology learning gizmo five questions
Transcription is the process of mRNA synthesis. It occurs in the nucleus before translation. During transcription, RNA bases pair DNA bases, replacing Thymine with Uracyl. You will find the example in the explanation.
Note: The DNA sequence is missing, so I will provide a new sequence and explain the procedure. I suggest you perform the same steps with your molecule fragment and reach the correct mRNA.
Protein synthesisProteins synthesis is done in two stages: transcription and translation. The whole process begins in the nucleus and finishes in the cytoplasm.Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA. Once the new molecule is completed, it is sent to its final destiny.Transcription:The first step before protein arrangement is to synthesize messenger RNA, mRNA. This is the transcription process and occurs in the nucleus. When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand. The coding strand goes in direction 5' to 3', while the complementary strand -template strand- grows in direction 3' to 5'. This last segment is the one that is going to be complemented by the mRNA. It is the template strand. A template DNI strand is read in direction 3'→ 5' to build the mRNA molecule that grows in direction 5'→ 3'.During transcription bases forms pairs. RNA replaces Thymine with Uracyl, so pairs are as follows,DNA mRNA
Adenine pairs Uracyl, Thymine pairs Adenine, Guanine pair Cytosine, Cytosine pair Guanine.Translation:
Translation occurs in the cytoplasm. During translation, rRNA reads mRNA in 5' to 3' direction, and tRNA adds the correct amino acid to the growing chain. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.ExampleWe will consider for this example the following DNA template strand.
DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
Transcription
template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
The new mRNA strand is
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
Once the mRNA synthesis is over, the molecule leaves the nucleus and proceeds with translation in the cytoplasm.
You can learn more about transcription at
https://brainly.com/question/2141652
https://brainly.com/question/5001340
https://brainly.com/question/8953083
The sequence of bases on one strand of a DNA molecule is
TCGATCAGA. After replication of the strand of DNA, what is the
sequence of nitrogen bases on the complementary strand?
a. AGCUAGUCU
b.UGCAUGTCT
c.AGCTAGTCT
d.AGCTAGTUT
Answer:
C
Explanation:
Adenine matches with thymine
Guanine matches with cytosine
Why are differences and similarities in DNA and proteins evidence of evolution?
Answer:
Homologous structures provide evidence for common ancestry analogous structures show that similar selective pressures can produce similar adaptations beneficial features Similarities and differences among biological molecules in the DNA sequence of genes can be used to determine species relatedness
A geneticist is studying two traits in corn: kernel color and kernel appearance or ‘shine'. The R/r alleles determine kernel color (R – purple color; r – yellow color). The W/w alleles determine kernel ‘shine' (W – waxy; w – dull). The geneticist crosses two corn plants that are Rr Ww and Rr ww . What phenotypic ratio is expected from these two parents?
Answer:
Purple, waxy (R_W_) = 6
Purple, dull (R_ww) = 6
Yellow, waxy (rrW_) = 2
Yellow, dull (rrww) = 2
Phenotypic ratio = 3 (purple, waxy) :3 (purple dull) :1 (yellow waxy) :1 (yellow dull)
Explanation:
This question involves two genes coding for kernel color and kernel appearance or ‘shine in corn plants. The alleles for purple kernel (R) and kernel waxy (W) are dominant over the alleles of yellow color (r) and kernel dull (w).
According to this question, a geneticist cross two corn plants that have the genotype: RrWw and Rrww. The following gametes will be produced by each parent:
RrWw - RW, Rw, rW, and rw
Rrww - Rw, Rw, rw, and rw
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
Purple, waxy (R_W_) = 6
Purple, dull (R_ww) = 6
Yellow, waxy (rrW_) = 2
Yellow, dull (rrww) = 2
The phenotypic ratio expected from crossing these two parents is 3 (purple, waxy) :3 (purple dull) :1 (yellow waxy) :1 (yellow dull).
Please help me ASAP!!!
Answer:
The kinetic theory of matter says that the more the particles are moving, the more kinetic energy they have.
Explanation:
Kinetic energy is energy which a body possesses by virtue of being in motion.
8. For what purpose do the characteristics of ATP make it exceptionally useful to all types of
cells?
Answer:
The energy from ATP is needed for many cellular activities, including active transport across cell membranes, protein synthesis and muscle contraction. ATP's characteristics make it exceptionally useful as the basic energy source of all cells.
Explanation:
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!(points given)!
What are spring tides called (high tides or low tides)
Answer:
Spring tides have higher high tides and lower low tides
so spring tides or low and high just more extreme in either direction
systems of body which holds sperm and eggs
Answer:
i- are u
Explanation:
these three questions hard asab
Answer:
When a peeled potato is placed in distilled water it will expand as result of osmosis
If some salt is added to the water the potato will shrink
A drop of ink is placed in a glass of pure, clear water, and after a while all the water turns blue. This spread is as result of osmosis
Explanation:
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