1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
HACTEHA [7]
3 years ago
6

Did your school decreased their Thanksgiving break from Wed. to Sun. because of the coronavirus?

Biology
2 answers:
N76 [4]3 years ago
8 0

Answer:

o m g YES THEY DID!!!!!!!!!

worty [1.4K]3 years ago
8 0

No they started the break on Friday and next Monday we have school I think not sure

Explanation:

You might be interested in
Why choose that gene for PCR in the bacterial identification lab?
Reika [66]

Answer:

Background

During the course of a bacterial infection, the rapid identification of the causative agent(s) is necessary for the determination of effective treatment options. We have developed a method based on a modified broad-range PCR and an oligonucleotide microarray for the simultaneous detection and identification of 12 bacterial pathogens at the species level. The broad-range PCR primer mixture was designed using conserved regions of the bacterial topoisomerase genes gyrB and parE. The primer design allowed the use of a novel DNA amplification method, which produced labeled, single-stranded DNA suitable for microarray hybridization. The probes on the microarray were designed from the alignments of species- or genus-specific variable regions of the gyrB and parE genes flanked by the primers. We included mecA-specific primers and probes in the same assay to indicate the presence of methicillin resistance in the bacterial species. The feasibility of this assay in routine diagnostic testing was evaluated using 146 blood culture positive and 40 blood culture negative samples.

Explanation:

Results

Comparison of our results with those of a conventional culture-based method revealed a sensitivity of 96% (initial sensitivity of 82%) and specificity of 98%. Furthermore, only one cross-reaction was observed upon investigating 102 culture isolates from 70 untargeted bacteria. The total assay time was only three hours, including the time required for the DNA extraction, PCR and microarray steps in sequence.

3 0
3 years ago
Is the binding of a transcription factor to its dna recognition sequence necessary and sufficient for an initiation of transcrip
hram777 [196]

Transcription factors are necessary for an initiation of transcription at a regulated gene but not sufficient.

Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:

1. Initiation

• RNA polymerase with transcriptional factors bind to gene promoter Transcription factors can enhance the interaction between RNA polymerase and a DNA sequence- promoter, encouraging the expression of the gene. Such transcription factors are called activators. Otherwise, when the gene expression is inhibited, factors are called repressors and they bind to sequence –operator.

• RNA polymerase unwinds DNA double helix (transcription bubble is formed)

2. Elongation

• RNA polymerases adds nucleotides complementary to DNA  

3. Termination

• RNA polymerase gets to stop codon (transcribes a sequence of DNA known as a terminator)

• Formed complementary RNA strand is released from DNA-RNA complex

6 0
3 years ago
What is the scientific name for dog
slamgirl [31]
Canis lupus familiaris
5 0
3 years ago
Read 2 more answers
The least-equipped organisms may not survive True False
Mademuasel [1]

Answer:

True

Explanation:

4 0
3 years ago
Pesticides sprayed on the plants in fields become
kirill115 [55]

Answer:

pollutants

Explanation:

have a nice day :)

6 0
3 years ago
Other questions:
  • Give three sources of error in the indirect method of determining systemic arterial blood pressure.
    15·1 answer
  • The ___ secretes several hormones that stimulate the development of lymphatic organs and regulates development and activity of t
    9·1 answer
  • During the contraction of a vertebrate skeletal muscle fiber, calcium ions _____.
    8·1 answer
  • The area where the fresh water of a river meets the salt water of the ocean is a(n)
    8·1 answer
  • The cell cycle is a repeating series of events that include growth DNA synthesis and cell division true or false
    14·2 answers
  • Some studies have indicated that our eyes naturally travel from bottom left to top right, so putting the diagonal along that pat
    5·2 answers
  • The palisade layer
    7·2 answers
  • Can somebody answer those two questions please
    5·1 answer
  • These are the 5 main
    14·1 answer
  • Part C
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!