1. Which is most characteristic of metaphase?
replication of a cell’s DNA
positioning of chromosomes on the equatorial plate of a cell
movement of centrioles to the poles of a cell
rest

2.An analogy for the nucleus of a cell is a community’s __________.
waste management services
manufacturing plants
police station
City Hall

3. Which of the following is evidence that mitochondria might have once been free-living organisms that were incorporated into the cell?
They work independently in the cell.
They are capable of duplicating themselves.
They have no membrane.
They are extremely small.

4.Which would have a greater surface-area-to-volume ratio, a large cell or a small cell?
the large cell
the small cell
The two cells have the same surface-area-to-volume ratio.
There is no way to know.

I can’t get the answers to these. Can you help me out?! Thanks so much in advancee!

Molecules produced by combining DNA from different species
_ _ _ _ e _ _ _

Technique that uses a microscopic class needle to insert recombinant DNA into cells
_ _ _ _ _ _ _ _ _ _ t _ _ _

Process in which DNA pieces are seperated by an electric field
_ _ _ _ _ _ _ _ _ _ _ e _ _ _

Phenomenon in which products of a hybrid cross are hardier than either of the species that produced them
_ _ _ _ _ _ _ _ g _ _

Technique that identifies and replicates the noncoding gene sequences in a strand of DNA
_ _ _ _ _ _ _ _ _ _ _ i _ _ _ _ _

Protein that blocks the growth of viruses
_ n _ _ _ _ _ _ _ _

Inheritable changes in DNA
_ _ _ _ _ _ _ n _

A product formed by the process of photosynthesis that is needed for all animal life on earth is __________.

A. water
B. ATP
C. NADPH
D. oxygen
2. All living things use energy in the form of ADP.

A. true
B. false
3. The products of respiration are carbon dioxide (CO2), water, and ATP.

A. true
B. false
4. Lactic Acid fermentation is a process that allows cells to release energy in the absence of oxygen. What is this type of respiration called?

A. Aerobic respiration
B. Oxygenated respiration
C. Anaerobic respiration
D. Deoxygenated respiration
5. Plants and animals obtain energy in different ways, but they both must transfer the energy obtained into a usable form. What is the usable form of energy called?

A. Phosphorous
B. ATP
C. DNA
D. NADPH
i need to graduate

1) Expose the bacteria to an antibiotic that kills cells which dont have the plasmid
2) Use an electron microscope
3) Take out the DNA from al lthe cells to see which ones have the plasmids
4) Make antibodies for each bacterium that has a recombinent plasmid.

Thanks so muchh in advance!

I can’t get the answers to these. Can you help me out?! Thanks so much in advancee!

Molecules produced by combining DNA from different species
_ _ _ _ e _ _ _

Technique that uses a microscopic class needle to insert recombinant DNA into cells
_ _ _ _ _ _ _ _ _ _ t _ _ _

Process in which DNA pieces are seperated by an electric field
_ _ _ _ _ _ _ _ _ _ _ e _ _ _

Phenomenon in which products of a hybrid cross are hardier than either of the species that produced them
_ _ _ _ _ _ _ _ g _ _

Technique that identifies and replicates the noncoding gene sequences in a strand of DNA
_ _ _ _ _ _ _ _ _ _ _ i _ _ _ _ _

Protein that blocks the growth of viruses
_ n _ _ _ _ _ _ _ _

Inheritable changes in DNA
_ _ _ _ _ _ _ n _

I can’t get the answers to these. Can you help me out?! Thanks so much in advancee!

Molecules produced by combining DNA from different species
_ _ _ _ e _ _ _

Technique that uses a microscopic class needle to insert recombinant DNA into cells
_ _ _ _ _ _ _ _ _ _ t _ _ _

Process in which DNA pieces are seperated by an electric field
_ _ _ _ _ _ _ _ _ _ _ e _ _ _

Phenomenon in which products of a hybrid cross are hardier than either of the species that produced them
_ _ _ _ _ _ _ _ g _ _

Technique that identifies and replicates the noncoding gene sequences in a strand of DNA
_ _ _ _ _ _ _ _ _ _ _ i _ _ _ _ _

Protein that blocks the growth of viruses
_ n _ _ _ _ _ _ _ _

Inheritable changes in DNA
_ _ _ _ _ _ _ n _

I can’t find the answers to these questions! And some I am unsure of…

1. Most molecules with regular structure produce specific _________ diffraction pictures.
I guessed and put "x-ray". Is it right?

2. When nucleotides are linked together in DNA, the __________ group attached to the 5′ carbon of one sugar attaches to the 3′ carbon of an adjacent sugar.
Is it phosphate? Or what?

3. Recombinant DNA may make it possible to produce ________ protein in _______ cells.

4. T or F: All members of the same species of organism contain DNA with almost exactly the same chemical composition.

5. Restriction enzymes attack double stranded DNA:
A) only at the 3′ end
B) only at the 5′ end
C) at a point in the middle of a particular nucleotide sequence
D) only between cytosine and guanine containing nucleotides

Thanks for the help. I’ve tried searching around and reading through my notes and handouts, but I can’t find the answers.

Compare them, por favor?
D;

Also, while you’re at it…
Location where photosynthesis occurs in cholorplast – light dependent and light independent
reactants used for light dependent and light independent
and products produced w/ light dependent and light independent

equation used for aerobic respiration?

describe 2 types of anaerobic respiration. when does anaerobic occur? what types of cells?

where fermentation and kreb’s cycle occurs?

how to find amino acids w/ DNA, mRNA, and tRNA?

D; sorry it’s a lot.
help me out by answering as much as you can?

Need someone really knows Biology!

Choose best answer.

Which statement correctly describes how life might have begun in the shallow seas under Earth’s primative atmosphere?

(a)In the Archean eon, when there was an absence of free oxygen, prokaryotic cells developed in the shallow seas. These cells got energy through fermentation and had self-replicating RNA and other organic molecules.
(b)Eurkaryotic cells were the first to develop in the shallow seas using fermentation to get energy. They were little more than memebrane bound, self replicationg RNA.
(c) Eubacteria cells were the first to develop in the shallow seas using photosynthesis to get their envergy. They were little mor ethan membrane bound, self-replicating DNA and other organic molecules.
(d) In the Precambrain eon, when there was an absence of free oxygen, stromatolite cells developed in the shallow seas. They got their energy from photosynthesis and had self-replicating DNA and other organic molecules.

I firmly believe that our soul is in our feces. I think each time we poop, we lose part of our life force, ATP, or soul. I would like to preserve my energy. Upon isolation of my feces, I think salting followed by a deep freeze would be the optimal preservation method. Do you think the ion concentration from the salt and extreme temperature change will damage the DNA? I know from my graduate work, that if you freeze cells too quickly the water in the cells can burst the outer membranes. Do you think salting then a slow freeze would be best? What would be the best salt to use? I was thinking a mixture of Ca(OH)2, NaCl and KI salts. Thank you.