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
frosja888 [35]
3 years ago
9

Compare and contrast Prophase and Telophase. what is different about DNA of the chromosomes in these phases. ( Max 5 Sentences )

Biology
1 answer:
shepuryov [24]3 years ago
4 0

Answer:

The C. elegans embryo is a powerful model system for studying the mechanics of metazoan cell division. Its primary advantage is that the architecture of the syncytial gonad makes it possible to use RNAi to generate oocytes whose cytoplasm is reproducibly (typically >95%) depleted of targeted essential gene products via a process that does not depend exclusively on intrinsic protein turnover. The depleted oocytes can then be analyzed as they attempt their first mitotic division following fertilization. Here we outline the characteristics that contribute to the usefulness of the C. elegans embryo for cell division studies. We provide a timeline for the first embryonic mitosis and highlight some of its key features. We also summarize some of the recent discoveries made using this system, particularly in the areas of nuclear envelope assembly/ dissassembly, centrosome dynamics, formation of the mitotic spindle, kinetochore assembly, chromosome segregation, and cytokinesis.

1. The C. elegans embryo as a system to study cell division

The C. elegans embryo is a powerful model system for studying the mechanics of metazoan cell division. Its primary advantage is that the syncytial gonad makes it possible to use RNA interference (RNAi) to generate oocytes whose cytoplasm is reproducibly (>95%) depleted of targeted essential gene products. Introduction of dsRNA rapidly catalyzes the destruction of the corresponding mRNA in many different systems. However, depletion of pre-existing protein is generally a slow process that depends on the half-life of the targeted protein. In contrast, in the C. elegans gonad, the protein present when the dsRNA is introduced is depleted by the continual packaging of maternal cytoplasm into oocytes (Figure 1). Since depletion relies on the rate of embryo production instead of protein half-life, the kinetics tend to be similar for different targets. By 36-48 hours after introduction of the dsRNA, newly formed oocytes are typically >95% depleted of the target protein.

Explanation:

You might be interested in
Cardiovascular effects of the sympathetic division include all of the following EXCEPT ________. a. weak dilation of the blood v
dalvyx [7]

Answer:

d. dilation of the blood vessels serving the skin and digestive viscera.

Explanation:

Cardiovascular effects of the sympathetic division include all of the following EXCEPT dilation of the blood vessels serving the skin and digestive viscera.

6 0
2 years ago
Please help with biology thanks
Serga [27]
The answer is D, a desert biome, 
6 0
3 years ago
Read 2 more answers
PLEASE THIS IS DUE AT 11:59 how are the consequence of injuries to the heart and spinal cord similar to each other? how are they
Goryan [66]

Answer:

they both could kill u dude

Explanation:

4 0
2 years ago
Read 2 more answers
In pea plants, the allele for tallness is dominant. What are the possible genotypes of a tall pea plant?
kozerog [31]
TT and Tt are possible genotypes of a tall pea plant as the resulting phenotype of both possible genotypes result in a tall pea plant.
4 0
3 years ago
Read 2 more answers
10% of available energy flows from one trophic level to the next. What happens to the other 90%?
Amiraneli [1.4K]
Primary consumers<span> only obtain a fraction of the total solar energy—about 10%—captured by the producers they eat. The other 90% is used by the producer for growth, reproduction, and survival, or it is lost as </span>heat<span>. You can probably see where this is going. Primary consumers are eaten by </span>secondary consumers<span>. An example would be birds that eat bugs that eat leaves. </span>Secondary consumers<span> are eaten by </span>tertiary consumers<span>. Cats that eat birds that eat bugs that eat leaves, for instance.</span>
5 0
3 years ago
Other questions:
  • Human papillomavirus (HPV) is a double-stranded DNA virus that enters the cytoplasm before undergoing uncoating. Although the vi
    13·1 answer
  • Which statement presents a commonly-found format for hypotheses?
    6·1 answer
  • Why is there no single set of steps in the scientific method?
    14·1 answer
  • What type of bond is formed when two atoms share a pair of electrons?
    11·1 answer
  • Voluntary control of skeletal muscles is provided by the
    7·1 answer
  • I have a large role in muscle developement
    13·1 answer
  • 8.
    9·1 answer
  • Test Tube 4 - Sugar (Sucrose): Demetri fills the fourth test tube one-quarter full of sugar. He then adds water to the test tube
    13·2 answers
  • PLEASE HELP, ASAP, I WILL GIVE BRAINIEST, NO LINKS OR YOU WILL BE REPORTED!
    13·2 answers
  • You throw a ball to win the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!