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
Oxana [17]
3 years ago
11

Which of the following statements is correct regarding engineering maize plants with a herbicide-resistance gene using Agrobacte

rium-mediated plant transformation?
a. The Ti-plasmid used for this experiment must contain tumor-inducing genes.
b. The herbicide-resistance gene is cloned into the T-DNA region of the Ti-plasmid.
c. The herbicide-resistance gene is cloned into a region outside of the T-DNA in the Ti-plasmid.
d. A guide RNA is used to transfer T-DNA from Agrobacterium to the plant cell.
e. The whole Ti-plasmid containing the herbicide-resistance gene is inserted into the maize genome after infection with Agrobacterium
Biology
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

b. The herbicide-resistance gene is cloned into the T-DNA region of the Ti-plasmid.

Explanation:

Ti-plasmid has the ability to introduce part of its DNA (t-DNA) into the genome of host plants. This is very important for the relationship of genetic manipulation in maize plants, with the aim of inducing a gene that promotes herbicide resistance. In addition, T-DNA has many genes that code for the production of plant growth phytohormones, which is extremely important for the cloning process to work. In this case, we can assume that the correct answer for yours is the letter B.

You might be interested in
The house fly, Musca domestica, has a haploid chromosome number of 6. How many chromatids should be present in a diploid, somati
Vlad [161]

Answer:

12

12

24

Explanation:

<em><u>Musca</u></em> <u><em>domestica</em></u> is the scientific name of an animal popularly known as Housefly.  From the question, it is  known that this organism has a haploid chromosome number of 6.

In a diploid chromosomes, the number of chromatids that will be present will be twice of that in haploid.

Since haploid (n) = 6, diploid (2n) will be; 2 × 6 = 12

Somatic cells on the other hand also exhibit diploid number of chromosomes, again it means we will have (2n) = 2 × 6 = 12

In metaphase cell, cells do make sure they complete the S'phase of the cell cycle before cellular division.Therefore, the DNA present in the chromatids in the S'phase actively engage in chromatids doubling, as a result, 24 chromatids (i.e 12 × 2= 24) exists in the metaphase cell.

5 0
3 years ago
Predict what might happen to the dark moth population in the light forest, if the simulation ran for a longer period of time.
Shalnov [3]
The population of the moths would plummet because they would be easily visible in their environment.
7 0
4 years ago
Which of the following best describes the matter present in an ecosystem?
Anna71 [15]
What are the choices to choose from? (It says "which of the following")

3 0
3 years ago
Read 2 more answers
Explain one adaptation that helps grasses succeed in grasslands
ehidna [41]

Answer:

Basal meristems

Explanation:

Meristems are the portion of plants able to generate any kind of new tissues. Therefore, the way plants keep their meristems protected is related to climate adaptation.

Grasslands tend to be arid ecosystems, so grasses have developed basal meristems, meaning they spend the dry season very close or under soil, where water evaporates slowlier than above surface, until wet season allows meristems to generate new stems and leaves.

This disposition is also useful in cases of fire and grazing, which are also frecuent in grasslands.

8 0
3 years ago
When the neurotransmitter GABA binds to its receptor's which way does CI chloride move in what is the consequences of GABA bindi
diamong [38]

Answer:

towards the inside hyperpolarising the neuron

Explanation:

GABA(gamma amino butyric acid) is an inhibitor neurotransimitter. When it attaches to the post-synaptic segment it causes an influx of anions that makes is harder to generate an action potential.

4 0
3 years ago
Other questions:
  • Which organelle contains DNA and controls the activity in the cell? Image of a plant cellshown with letters A to H showing vario
    14·2 answers
  • What is membrane biogenesis?
    11·1 answer
  • How many chromosomes do you receive from each parent
    11·2 answers
  • What is the difference between pollen and spores?
    6·2 answers
  • During diffusion, do molecules move from areas of low concentration to high concentration, or high concentration to low concentr
    6·1 answer
  • Hormones are secreted and released into the blood by _____. select one:
    14·1 answer
  • _____ describes the life cycle of a star
    13·2 answers
  • What is an adaptive radiation
    11·1 answer
  • A scientist studying stars can estimate the temperatures of stars by their
    15·1 answer
  • Some antibiotics bind to the bacterial enzyme, _____, which effectively stops bacterial growth because bacteria need this enzyme
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!