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Doss [256]
1 year ago
6

Why are telomeres problematic for eukaryotic chromosome replication? a) They are highly repetitive and thus hard to replicate co

rrectly. b) Telomerase is more error-prone than the normal DNA Polymerase. c) The T loop blocks formation of primers on the lagging strand. d) Removal of the lagging strand primer leaves a gap in the one of the strand's DNA sequences. e) Maintaining very long telomeres promotes cancer cell formation.
Biology
1 answer:
Natalka [10]1 year ago
4 0

Answer: Option E

Maintaining very long telomeres promotes cancer cell formation.

Explanation:

Telomere refers to either of the sequences of DNA at each end of a eukaryotic chromosome.

Usually, in eukaryote chromosome replication, telomeres are not replicated.

Hence, they are usually lost resulting in the shortening of the telomere ends after repeated cycle of cell division. This also leads to cell aging and stoppage of cell division.

The shortening of telomere combined with stoppage of cell division, and cell aging initiation prevent CANCER, which thrives on lengthy telomeres

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Build several models of his tree house out of different materials, and see which model holds up best to wind, water, and ice.

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1 year ago
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Explain one specific reason why a cell wants to have tight control over its Cl- channel.
Mars2501 [29]
<span>Among other parts, Cl-channels or Chloride channels hold a great importance in maintaining the proper volume of the cell. It is significant also especially cell proliferation and salt secretion.</span>
7 0
1 year ago
Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this abi
iogann1982 [59]

Answer:

D. Plasmids are nucleic acids which can pass on traits

Explanation:

A Nucleic acid is one of the four biomolecule polymers in living systems. It is made up of monomeric units called Nucleotides. RNA and DNA are the two nucleic acids in existence and they function in storage and expression of genetic information.

According to the question, a colony of bacteria that can break plastics were mixed with the colony that can't break plastics. The two different colonies engage plamids, which conferred the ability to break plastics to some of the colonies that previously couldn't. This tells us that the ability to break plastics in the certain bacteria colony is GENETIC.

If the trait is genetic, the plasmid must be a nucleic acid because of the ability to genetically pass on traits. Note that, a plasmid is an extra-chromosomal DNA (nucleic acid) capable of replicating on its own. Hence, plasmids are nucleic acids which can pass on traits.

8 0
1 year ago
Griffith's experiments with S. pneumoniae were significant because they showed that traits could be transferred from one organis
Sladkaya [172]

Answer:

d.The transferred traits were heritable.

Explanation:

Griffith's experiments with S. pneumoniae were significant  because they showed that traits could be transferred from one organism to another and these transferred traits are known to be as heritable traits. In another experiment carried out by Hershey and Chase experiment it was confirmed by the results that DNA is actually the hereditary material not the protein.

7 0
1 year ago
Assume that there are 8 rats in the cage: 6 trained and 2 untrained. A rat is removed from the cage and it is noted whether or n
mojhsa [17]

Answer:

1. Option A

2. 56

Explanation:

1.

Option A

Option A is not a valid answer for this question as it is given that out of eight rats only two rats are untrained. Thus, an output which shows more that two untrained rats i.s UUTTU is a wrong answer

2.

8C_5 = \frac{8!}{5!(8-5)!} \\8C_5 = \frac{8*7*6*5!}{5! * 3!} \\8C_5 = \frac{8*7*6}{3*2*1} \\8C_5 = 56

Thus , there are 56 outcomes possible for this experiment

6 0
1 year ago
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