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
Dovator [93]
3 years ago
7

1. Which of these statements can be

Biology
1 answer:
stich3 [128]3 years ago
4 0
A)A chromosome is a long continuous strand of DNA
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
Which is a homologous chromosome pair?<br> A.chromatid<br> B.zygote<br> C.gamete<br> D.tetrad
AVprozaik [17]

Hello!! I think your best answer would be D - Tetrad because consists of four chromatids. It is made up of two (pair) of homologous chromosomes that have already replicated into a pair of sister chromatids. I hope this answers your question. Have a great day!! :)

7 0
3 years ago
In somatic cells, replication of a parent cell results in ___.
Mashutka [201]
D identical diploid daughter cells

7 0
3 years ago
Read 2 more answers
Can one of the smartest people help me plz
Artemon [7]

Answer:

It chloroplast

Explanation:

contains chlorophyll which traps energy from the sun.

7 0
3 years ago
Which of the following procedures removes small portions of one's cornea in order to help change the cornea's curvature and re-e
Nat2105 [25]
Out of the options I would have to say Penetrating Keratoplasty, I am not sure
6 0
3 years ago
Read 2 more answers
Other questions:
  • About what percentage of eukaryotic DNA transcribes protein?
    12·1 answer
  • A scientist must always try to avoid _____________ in scientific experiments.
    7·1 answer
  • In a long dna molecule, each origin of replication produces a _____ with a _____ on each side.
    11·1 answer
  • What are two types of asexual reproduction
    9·1 answer
  • While testing for biological macromolecules in an unknown, you find that it reacts strongly with iodine and the solution immedia
    5·1 answer
  • Why is the magnet able to separate the sand from the iron?
    13·1 answer
  • What is an introduced species ( APEX question )
    11·2 answers
  • Unequal distribution of ions across a cell membrane is called what?
    10·1 answer
  • 5. A woman with AO blood types has children with a man with AB blood. There is a mix up at the
    13·2 answers
  • List the phases of mitosis and what happens during each phase.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!