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Digiron [165]
3 years ago
15

What household item can be used to represent a nucleus and why?

Biology
1 answer:
agasfer [191]3 years ago
4 0
A TV remote could easily represent the nucleus; without it, none of the other functions can, well, function!




Hope this helped!
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In order for P. multocida to survive and carry out cellular functions (and cause infection), the energy contained in each molecu
gladu [14]

Answer:

Components of the electron transport chain (ordered by electronegativity from least electronegative to most electronegative):  

NADH dehydrogenase >> Coenzyme Q >> Cytochrome b-c1 complex >> Cytochrome c >> Cytochrome oxidase complex > O2

Explanation:

The electron transport chain transfers electrons from donors to acceptors via redox reactions (i.e., where reduction and oxidation occur together), and couples the transfer of electrons with proton transfer (H+ ions) across the membrane. In the electron transport chain, the electrons are transferred from NADH dehydrogenase NADH to oxygen (O2) through a series of transmembrane complexes: NADH-Q oxidoreductase, Q-cytochrome c oxidoreductase and cytochrome c oxidase. In the first place, the reduced form of coenzyme Q (ubiquinone) transports the electrons from the NADH-Q oxidoreductase to the Q-cytochrome c oxidoreductase complex (Cytochrome b-c1 complex). Second, the cytochrome c transports the electrons from this complex (i.e., Cytochrome b-c1 complex) to the Cytochrome oxidase complex, this being the last component in the electron transport chain that is responsible to catalyze the reduction of O2.

6 0
3 years ago
The mass of a nucleus is less than the total mass of its nucleons. This difference in mass indicates that some of the mass has b
elena-14-01-66 [18.8K]

Answer:

Option B , Binding Energy

Explanation:

The energy in combining two nucleus is lost in binding them. This binding energy is too large that it causes significant loss of mass and is calculated using the Einstein’s theory of relativity.  

When two nucleons combine , mass defect is caused which leads to loss of mass associated with energy and therefore the mass of nucleus is less than the mass of nucleons.  

Hence, Option B is correct.

6 0
2 years ago
If a homozygous black bull is mated with a homozygous white cow and the calf is gray, this would be an example of ________. howe
I am Lyosha [343]

The first statement above is an example of incomplete dominance. If the calf has black and white spots then that’s an example of codominance.

 

Incomplete dominance is a form of transitional inheritance in which one allele for an explicit trait is not entirely expressed over its paired allele. This effects in a third phenotype in which the expressed physical trait is a mixture of the phenotypes of both alleles.

 

Codominance<span> is a form of dominance by which the alleles of a gene pair in a heterozygote are wholly expressed. This effects in offspring with a phenotype that is neither dominant or recessive. A usual example showing this type of dominance is the ABO blood group system.</span>

<span> </span>

4 0
3 years ago
The Meselson and Stahl experiment starts with E. coli containing 15N/15N labeled DNA grown in 14N media. Which result did Mesels
cricket20 [7]

Answer:

No 15N/15N labeled DNA was observed in second generation

Explanation:

Meselson and Stahl were doing an experiment to find out the semi-conservative mode of replication of DNA. The first cultured bacteria in 15N medium which was containing a heavy isotope of nitrogen. The DNA synthesized here had more density. After that they transferred the bacteria to the 14N containing medium. When bacteria reproduced and new strands of DNA were synthesized, they observed the following -

  • The first generation had hybrid DNA with 15N/14N strands
  • The second generation had both hybrid 15N/14N DNA and 14N/14N DNA strands
  • There was no 15N/15N DNA observed.

In this way they proved that one strand of DNA is kept conserved during the replication.

4 0
2 years ago
Read 2 more answers
The table below shows the characteristics of four pathogens.
11Alexandr11 [23.1K]

Pathogen 3 will most likely be a virus with the features seen in the table.

<h3>What is a Pathogen?</h3>

This is defined as disease causing microorganism and examples include bacteria, virus etc.

Virus doesn't replicate on its own but only when in the living cells of other organisms and has a protein capsid but lacks nucleus.

Read more about Virus here brainly.com/question/17173059

#SPJ1

4 0
1 year ago
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