Answer:
a. OFF
b. ON
c. OFF
d. ON
Explanation:
Allosteric regulation is a process by which a particular molecule activates or inhibits an enzyme, by binding to a site different from the active site of the enzyme. Allolactose is a disaccharide that binds to the allosteric site of the lac repressor protein, triggering a conformational change in the protein that prevents the binding of this repressor to DNA. Moreover, RNA polymerase (RNA pol) is an enzyme required for the process of transcription, and therefore when this enzyme cannot bind to operon genes the lac operon is being turned OFF. Finally, the lac operator is a nucleotide sequence where RNA pol binds, and the lac repressor binds to the lac operator in order to block the transcription of the lac operon.
How are the electrons in the PS II system replaced?
Answer: Photosystem I obtains replacement electrons from the electron transport chain. ATP provides the energy and NADPH provides the hydrogen atoms needed to drive the subsequent photosynthetic dark reaction, or Calvin cycle.
Explanation:
Pls help pls pls pls pls pls pls pls pls 6th grade science 30 points
why is staining done
Answer:
The most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.
give two reasons that a particular molecule may be unable to cross the plasma membrane
Answer:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
Removes water from waste and puts it back into the body; waste turns into solid here. *
What happens when the slightest change happens in an ecosystem?
A. It affects the whole system.
B. It affects part of the system.
C. The ecosystem ignores the change.
D. Nothing happens.
Transcription is the beginning of protein synthesis. Some of the following sentences describe events that occur during the process of transcription in eukaryotes. Determine which sentences describe steps in the process of transcription, and then place them in the chart in the order that they occur.
Answer: 1-the enzyme separates... 2.the enzyme rna polymerase binds... 3.rna polymerase... 4. The rna molecule (called a transcript)...
The diagram below shows a model of four waves. An image of four waves labeled W, X, Y, Z is shown. Wave W has the smallest distance from crest to crest across the length of the wave. Wave Z has the largest distance from crest to crest across the length of the wave. Wave X has a larger distance from crest to crest than Wave W but are not as far apart as Wave Y. Wave Y has a larger distance from crest to crest than Wave X but not as far apart as Wave Z. Which wave has the lowest frequency? W X Y Z
Answer:
The Answer is D(Z)
Hope this helps-KayPea
Explanation:
Answer:
The Answer is D(Z)
Explanation:
How is stress stored
in a rock released?
Answer: The stress builds up in rocks. However, rocks eventually break, and the stored stress is released as energy in the form of earthquakes. ... The energy released during an earthquake migrates away from the focus of the earthquake (location of the first break of the rocks) as waves. These waves are called seismic waves.
Explanation:
HELP ASAPP‼️‼️‼️‼️IT WOULD BE GREATLY APPRECIATED
Answer:
b
Explanation:
It's part of RNA
Answer:
B
Explanation:
When DNA goes to RNA, you have to find the matching pair. G goes to C, A to U, T to A, and C to G. Ask for any clarification!
To a large extent, a protein's function is dependent upon its shape. What determines a protein's shape?
The number of amino acids
O The sequence of amino acids
O The number of peptide bonds
O The location of the active site
Answer:
The sequence of amino acids
Explanation:
can someone explain what's going on in the graph?
Which of the following is another way to refer to sex cells
a. gametes
b. sex cells
c. somatic cells
d. mitosis
Answer:
a
Explanation:
zI did this the other day.... pretty weird but ok!!!!
Two organisms within the same family can be organized into several related
orders
kingdoms
phylum
genus
Answer:
Phylum and Kingdoms
Hopefully this is right.
What is the process by which new oceanic crust is?
Explanation:
Subduction happens where tectonic plates crash into each other instead of spreading apart. At subduction zones, the edge of the denser plate subducts, or slides, beneath the less-dense one. The denser lithospheric material then melts back into the Earth's mantle. Seafloor spreading creates new crust.
in which of the glands are ducts located between lobules.
Answer:
Interlobular -- Located between lobules, within the thin connective tissue septa that separate lobules. All interlobular ducts are excretory.
Which of the following is true regarding the process shown below?
A. This process is cloning and involves the production of RNA from protein molecules.
B. This process is replication and involves the production of DNA from RNA.
C. This process is translation and involves the production of proteins from RNA.
D. This process is transcription and involves the production of proteins from DNA.
Answer:
C. This process is translation and involves the production of proteins from RNA.
Explanation:
- In the process of protein synthesis, the first step is called “transcription”. In transcription, the mRNA (messenger RNA) unwinds DNA base pairs, and pairs it with the single strand of RNA (A,U,C,&G) . Then the mRNA moves out of the nucleus and into the cytoplasm to ribosome. That process is called “translation”. In translation, there is a molecule called tRNA (transfer RNA). There is an amino acid which corresponds to the base pairs of RNA in top, which will create a chain of amino acids.
Answer:
Translation
Explanation:
Species can change over time and adapt to their environment.
A. True
B. False
Answer:
True
Explanation:
This statement is true. A species can always change over time and adapt to their environment.
What are species?A species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. It is a class of plants or animals whose members have the same main characteristics and are able to breed with each other.
Moreover, it is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behavior or ecological niche.
Hence, species can change over time and adapt the conditions according to their environment.
Learn more about species:
https://brainly.com/question/13259455
#SPJ2
If soraya ate the soup on the fourth day could she have gotten sick?
How can you use genetics to study human inheritance?
Answer:
by analyzing how genes influence the development of phenotypic traits, i.e., by determining the association between phenotypic traits and changes in DNA sequence
Explanation:
Genetics is a discipline that studies how genetic variation, i.e., the variation in the Deoxiriibunicleinc acid (DNA) molecule, is associated with the transmission of heredity, and how the environment influences this process. The DNA is a molecule that carries the instructions to perform all metabolic functions (eg., reproduction, development, growth, etc). Thus, advancements in genetics enabled us to decipher how phenotypic traits pass from parents/ancestors to their offspring/descendence. Genes are segments of DNA that carry the information (genetic information) to determine each phenotypic trait. During reproduction, genes are passed from one generation to the next, thereby transmitting this information across generations.
What living things are important for the frog’s survival?
Can you pls list three?
Answer:
food, water, habitat
Explanation:
Answer:
Frogs need suitable land and freshwater habitats in order to survive. They also have highly permeable skin that can easily absorb bacteria, chemicals and other toxins.
What leads to genetic recombination in Archaebacteria?
budding
endospore
conjugation
binary fission
Answer:
Binary Fission I believe.
Two models, process A and process B, are shown here as two different potential pathways for viral replication. Evaluate the statements below and select ALL of the statements that are supported by the processes modeled here.
Answer:
the and anwers is b Process A is a lytic cycle that results in the host cell's death, d Both processes involve a viral genome being replicated inside of a host cell and e Process B allows the viral genome to be dormant and reside within the host's genome.
Explanation:
just did the usa test prep
Differentiate between cell mass and cell number
Answer:
Measurement (Count) of Cell Numbers:
1. Breed Method:
A known volume of microbial cell suspension (0.01 ml) is spread uniformly over a glass slide covering a specific area (1 sq. cm). The smear is then fixed by heating, stained, examined under oil immersion lens, and the cells are counted.
Customarily, cells in a few microscopic fields are counted because it is not possible to scan the entire area of smear. The counting of total number of cells is determined by calculating the total number of microscopic fields per one square cm. area of the smear.
Answer:
cell mass: The total mass of all the cellular elements in the body which constitute all the metabolically active tissue of the body
Cell number: The sequence of numbers or characters, that when dialed, connects to a particular cellular telephone
Explanation:
What will happen if you heat a liquid to high temperatures?
Question 3 options:
It will become a colloid.
It will become a solid.
It will become plasma.
It will become a gas.
Answer:
D. It will become a gas.
Explanation:
I go to k12 and got it right. Science Unit 2 Test.
Which type of traits are neither dominant nor recessive but are a combined variation of both?
Codominant traits
Heterozygous traits
Polygenic traits
Sex-linked traits
Answer: codomiant traits.
Explanation: just took the pretest and that was the answer.
Help me with number 6 please its esay
Answer:
A
Explanation:
Learnt this 2 yrs ago in geography class
Answer:
a
Explanation:
Choose the word that best completes each sentence. Angiosperms’ anchor them in the ground and absorb water for the plant. Their stems provide support to the plant and connect the roots and leaves. Their capture the sun’s energy and use it to make food through the process of photosynthesis. Angiosperms’ contain the reproductive parts of the plant. Their protect and help spread the seeds.
Answer:
Root anchor them in the ground and absorb water for the plant. Woody stem provides support to the plant and connect the roots and leaves. Leaves capture the sun's energy and use it to make food through the process of photosynthesis. Flowers contain the reproductive parts of the plant. fruite protect and help spread the seeds.
Explanation:
Answer:
roots, leaves, flowers, fruits
Explanation:
Which is a property of a mineral?
A) density
B) odor
C) size
D) age
Identify this molecule. What is it the monomer of? This is an amino acid, and it is the monomer of a Protein. This is a nucleotide, and it is the monomer of DNA. This is a nucleotide, and it is the monomer of a Protein. This is an amino acid, and it is the monomer of DNA.
Answer:
This is the monomer of DNA
Explanation:
All three of these groups help make up the component DNA.
