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alukav5142 [94]
3 years ago
5

What are the four classes of cloud based on altitude? What does each prefix mean?

Biology
1 answer:
netineya [11]3 years ago
4 0
There's the cumulus, stratus, the cirrus and the nimbus.
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___ energy is how much energy is required to start a reaction.
Maurinko [17]

Answer:

Activation Energy

Explanation:

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3 years ago
Compare and contrast Prophase and Telophase. what is different about DNA of the chromosomes in these phases. ( Max 5 Sentences )
shepuryov [24]

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:

4 0
3 years ago
Mary, age 37, is pregnant for the first time, and her doctor has ordered a series of routine screening procedures. mary’s doctor
Elan Coil [88]
Probably Mary's doctor will not doctor a chronic villus sampling because of her first time pregnancy at the aged of 37 and her doctor ordered so many series of routine screening procedure. The doctor will not order a chronic villus sampling on Mary.
6 0
3 years ago
Has anyone done this yet ? I need help
Mariana [72]

Answer:

A cube's surface area formula is SA = 6s^2 (s is the length of one of the sides.)

A cube's volume formula is V=a^3

The answer should be 216 for both equations.

Explanation:

Hope this helps. :)

4 0
3 years ago
some biology students wanted to determine whether a pair of brown mice purchaced at a pet store was homozygous dominant of heter
lawyer [7]
Do a punnet square or something because you didn't give any info. 
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3 years ago
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