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3 years ago

20) The following are characteristics of cancer cells except for ____

Biology

2 answers:

san4es73 [151]3 years ago

8 0

Cancer cells have abnormal nuclei

galina1969 [7]3 years ago

5 0

Answer:

(a). Cancer cells undergo apoptosis.

Explanation:

Cancer cells are cells that undergo uncontrolled cell division and form tumors. Other characteristics cancer cells include abnormal cell nuclei (unstable genetic material due to mutations), lack of cell differentiation, angiogenesis,. and metastasis (spread of cancer cells to other body parts).

Cancer cells do not go for normal cellular death as these cells bypass the apoptosis (programmed cell death). Hence, cancer cells are considered as immortal cells.

Thus, the correct answer is option (a).

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A third-grader decided to breed guinea pigs for her school science project. She went to a pet store and bought a male with smoot

Alexxx [7]

To know what happened here you need to start analyzing the male and female guinea pig that this girl brought at the store.

Male with smooth black fur

Female with rough white fur

So, you have two characteristics: color and style of fur.

Those are the F0, the start of the bread.

The crossing made a litter of eight contained only rough black animals, this told you the dominance of the alleles:

Black (BB) over white (ww) and rough (RR) over smooth (ss).

Parents are BBss x wwRR = BwRs, BwRs,BwRs, and BwRs

So, the F1 or firs offspring will all have the BwRs alleles and the phenotype will be black rough.

When this F1 is crossed, you had a variety of coats and colors.

BwRs x BwRs =BBRR, BwRs, wBsR, wwss

This explains the variety of colors and coats.

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3 years ago

[20 POINTS!!!!!]

Maksim231197 [3]

<h2>A is the correct answer!</h2><h3></h3><h3>Increase in food supply = more food = BIGGER POPULATION</h3><h3>Decrease in predators = more living rabbits = more reproduction</h3><h3></h3><h3>This scenario is VERY bad for the ecosystem and the rabbit population in the long term.</h3>

4 0

3 years ago

You isolate an infectious substance that is capable of causing disease in plants, but you do not know whether the infectious age

Novosadov [1.4K]

I. treating the substance with nucleases that destroy all nucleic acids and then determining whether it is still infectious

Explanation:

Analysis of the nature of the specimen like the infectious agents (bacterium, virus, viriod, or prion) is very important to diagnose the diseases caused by them, investigate disease outbreak, to determine the clinical course of the infectious disease etc.

There are many methods like direct detection, cultivation assays, serological assays to detect the pathogen type.

Molecular techniques like polymerase chain reaction (PCR) is done to further analyze or investigate the pathogen, like its microbial genome, the virulence factor etc. These are amplification methods which help to investigate the pathogenesis and disease progression. PCR method involves denaturing the DNA polymerase which is a nuclease type of enzyme. Nucleases are present with exonucleases and endonucleases, both of which acts at specific points on the DNA of the pathogen and will create new templates .

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3 years ago

Which bacteria lives in the root nodules of leguminous plants?

inn [45]

Nitrogen fixing bacteria.

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4 years ago

The maximum number of orbits in an atom is _____.

ololo11 [35]

The answer is 7 / good luck :)

3 0

3 years ago

Read 2 more answers