Why is Dna replication is more complex in eukaryotes than in bacteria

Answers

Answer 1

Answer: In eukaryotes, the DNA strands are linear, and DNA polymerase can't replicate the very ends of the DNA strands! These ends are "protected" by repeated sequences called "telomeres." Either the chromosome gets shorter with each replication, or else a special enzyme-nucleic acid complex called telomerase adds new telomeres to the ends. A prokaryotic chromosome is circular and thus does not have the problem of having ends.

Eukaryotic DNA is wound around histones, coiled, and supercoiled -- to replicate it, there has to be unwinding mechanisms, and mechanisms to reduce the degree of coiling. In prokaryotes the winding problem is much less, and there aren't any histones

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Which of these properties changes if the size of an object changes?a. density
b. melting point
c. solubility
d. mass

Answers

im guessing c=solubilty because

A new drug is discovered for the treatment of thyroid cancer. Which is a logical next step of the scientific method after the discovery has been successfully tested?

Answers

clinical trials would be the next steps

to go to the clinic, or hospital would be the next step of what to do.
Hope that this helps you! =)

WHAT WOULD A GROUP OF GEESE IN AN ENVIRONMENT BE CONSIDERED .?

Answers

Answer:

Gaggle

Explanation:

A group of geese that belong to different families is called a gaggle. A gaggle is a large group in which birds look out for each other. In such large groups one or two birds take the responsibility of looking after the predators while the other just arrange for food or feed on it.

Gaggle is a collection of geese on land , while they fly in sky in a group they are known as skein and when they fly very close to each other in a group, then the group is known as a plump

A group of geese would be considered a population, providing they are all the same species.

What is a protein that is able to distinguish between a foreign protein or cell?

Answers

MHC Protein
The major histocompatibility complex (MHC) is a set of cell surface proteins essential for the acquired immune system to recognize foreign molecules in vertebrates, which in turn determines histocompatibility. The main function of MHC molecules is to bind to peptide fragments derived from pathogens and display them on the cell surface for recognition by the appropriate T-cells.[1] MHC molecules mediate interactions of leukocytes, also called white blood cells (WBCs), which are immune cells, with other leukocytes or with body cells. The MHC determines compatibility of donors for organ transplant, as well as one's susceptibility to an autoimmune disease via cross reacting immunization. In humans, the MHC is also called the human leukocyte antigen (HLA).

The processes of transformation and transduction are important to which kingdom and why?

Answers

Bacteria: Both processes provide the Bacteria with new genes that might provide new ways of dealing with environmental changes.

Final answer:

Transformation and transduction are crucial processes in the Kingdom Bacteria and to some extent in the Kingdom Archaea. They both contribute to genetic variation in bacterial populations, aiding in their adaptability.

Explanation:

The processes of transformation and transduction are vital in the Kingdom Bacteria (and also play roles in the Kingdom Archaea). Transformation involves a bacterium taking in DNA from its environment, allowing the bacterium to acquire new traits—this can potentially include pathogenic traits.

Transduction, meanwhile, is a process whereby a virus (a bacteriophage) transfers DNA from one bacterium to another, leading to genetic recombination. Both processes aid in increasing genetic variability in bacterial populations, which can help these organisms adapt to changing environmental conditions.

Learn more about Bacterial Transformation and Transduction here:

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Which events are likely to be catastrophic to an ecosystem?select the three correct answers.

A-hurricane.

B-steady population growth.

C-seasonal flooding.

D-introducing of an aggressive invasive species.

E-tsunami.

Answers

A- Hurricane
D-Introducing
E. Tsunami

D.) because that will enable wildlife of invasive species to live at the region

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The cyanobacteria reproduce by simple cell division known as _____. fission fusion germination

Junior biomedical researchers have long assumed that their hirings and promotions depend significantly on the amount of their published work. People responsible for making hiring and promotion decisions in the biomedical research field, however, are influenced much more by the overall impact that a candidate's scientific publications have on his or her field than by the number of those publications.The information above, if accurate, argues most strongly against which of the following claims?(A) Even biomedical researchers who are just beginning their careers are expected already to have published articles of major significance to the field.(B) Contributions to the field of biomedical research are generally considered to be significant only if the work is published.(C) The potential scientific importance of not-yet-published work is sometimes taken into account in decisions regarding the hiring or promotion of biomedical researchers.(D) People responsible for hiring or promoting biomedical researchers can reasonably be expected to make a fair assessment of the overall impact of a candidate's publications on his or her field.(E) Biomedical researchers can substantially increase their chances of promotion by fragmenting their research findings so that they are published in several journals instead of one.