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ella [17]
3 years ago
9

In what geologic era are we currently living

Biology
1 answer:
Kitty [74]3 years ago
4 0
It is the Holocene era
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Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?
dolphi86 [110]

Answer:

The nerves in the integumentary system (skin) sense the irritation and send the signal to the brain. The brain then sends impulses through the nervous system to scratch the itch.

Explanation:i hope this helps u :)

8 0
2 years ago
In peas, tall (T) is dominant to short (t), red flowers (R) is dominant to white flowers (r), and wide leaves (W) is dominant to
Elden [556K]

Answer:

Tt Rr WW

Explanation:

Given:

1. tall (T) is dominant to short (t)

2. red flowers (R) is dominant to white flowers (r)

3. wide leaves (W) is dominant to narrow leaves (w)

4. Also, a tall, red, wide-leaved plant is crossed to a short, white, narrow-leaved plant

To find: genotype (with correct arrangement of alleles) of a tall, red, wide-leaved parent

Solution:

Genotype (with correct arrangement of alleles) of a tall, red, wide-leaved parent is Tt Rr WW

4 0
3 years ago
If you set up an experiment and the results do not support your hypothesis, what should you conclude?
makvit [3.9K]
I think it would be D. because your hypothesis wasn't correct.
5 0
3 years ago
Read 2 more answers
In which ways can the individual steps of this process be regulated to lead to higher or lower expression of a particular protei
Dahasolnce [82]

Answer:

There are many points at which eukaryotic gene expression can be controlled, through pretranscriptional control, transcriptional control, and posttranscriptional control

Explanation:

The pretranscriptional control determines the accessibility of chromatin to the transcription machinery. It is affected by supercoiling and methylation. It is also known as epigenetic regulation, and it does not depend on the sequence but on the conformation of the DNA.

While transcriptional control determines the frequency and / or speed of transcription initiation through the accessibility of the start sites, the availability of transcription factors and the effectiveness of promoters.

The post-transcriptional control is the one that is exercised once the transcript has finished synthesizing. It can be of several types:

• Maturation control: As the RNA adjustment can be made.

• Transport control: Most RNA has to go out to the cytoplasm to perform its function. For this they have to cross the pores of the nuclear membrane, where you can select the RNAs that will be transported and those that will not.

• Stability control: The half-life of RNA can be regulated by the expression of RNAs or mRNA stabilizing proteins in the cytoplasm.

• Translational control: It is exercised on the frequency with which the mRNAs begin to be translated. It can also affect the frequency with which proteins mature and the availability of enzymatic effectors.

6 0
3 years ago
PLEASE HELP ASAP (: question in photo
Misha Larkins [42]

Answer:

A) exponential growth

Explanation:

5 0
3 years ago
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