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vredina [299]
2 years ago
5

Guys i really need help!

Biology
1 answer:
koban [17]2 years ago
4 0

Answer:

F

Explanation:

all the chromosomes in the nucleus replicate their DNA to make identical copies

i hope that i got it right

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What are known causes of epigenetic effects, and how do they
OverLord2011 [107]

Answer:

Epigenetic effects can be caused by DNA heterochromatin and/or histone silence or activate.

As such, they can different chromosomes or certain chromosomal regions and be responsible for parental imprinting or influencing gene activity in oxidation and reduction.

Patterns of nucleotide demethylation and hypermethylation are often activate when cancer cells are compared to normal cells.

Explanation:

Cells acquire various patterns of gene expression during differentiation to adapt to a changing environment. Epigenetic and genetic alterations are considered as two independent mechanisms that participate in the onset and progression of cancer. Epigenetic mechanisms can be as important for biological events as genetic mechanisms, which do not imply a change in the DNA sequence, but do have an important role in the modification of gene expression.

4 0
3 years ago
Jackie was born with _____ , the absence· of long· wavelength cones .
SpyIntel [72]
PROTANOPE. These are the individuals that suffers form color blindness. This color blindness is due to the absence fo the L- cones which are cones that are sensitive to long wavelength. Cones are one of the three types of photoreceptos found in the retina. These are responsilble for color vision and function best in a brightl light. In contrast to the rods which works on dim light. Cones are found in the fovea.
8 0
3 years ago
A plasmid 41 twists and 6 right handed writhes. What is the Lk for this plasmid?
OLEGan [10]

Answer: Lk for this plasmid = 47

Explanation:

The formula to compute Lk is given by :-

Topological Linking Number (Lk): Twist (Tw) + Writhe (Wr)

Given: A plasmid 41 twists and 6 right handed writhes.

i.e. Twist (Tw) = 41   , Writhe (Wr) = 6

Then, Topological Linking Number (Lk) for this plasmid :  = 41+6

= 47

Hence, the Lk for this plasmid = 47

3 0
3 years ago
Raya conducts an experiment to study the effect of altitude on the growth of plants she gathered plant samples and places them o
aniked [119]

Answer:

Independent variable: ALTITUDE

dependent variable: GROWTH OF PLANTS

Confounding variable: STOREYS OF THE BUILDING

Explanation:

In an experiment, the basic components i.e primary variables that an experiment should contain, are the independent and dependent variables.

- The independent variable is the variable that is changed or manipulated in an experiment. In this experiment, the ALTITUDE of the plant is the independent variable.

- The dependent variable is the variable that responds to changes to the independent variable. It is the variable measured in an experiment. In this case, the dependent variable is the GROWTH OF THE PLANTS.

- The confounding variable is a variable that has an extra influence on the outcome of the experiment. In other words, the confounding variable has an impact on the dependent variable. In this case, the confounding variable is the STOREYS OF THE BUILDING.

3 0
3 years ago
Can someone summarize The dual visual system to me AND color vision, like blindness etc...
Oduvanchick [21]

Dual visual system:

Dual visual system is nothing but the different visual systems that our brain is meant to direct.

The two visual systems are

  • Dorsal Stream
  • Ventral Stream  

Dorsal Stream:

Dorsal stream is mainly referred as a vision of action. This visual system is involved in moment by moment analysis. It is also known as where stream.

Ventral Stream:

Ventral stream is mainly referred to as the vision of perception. This visual system is meant to analyse and recognize shape and object etc. It is also known as What stream

Blindness:

Blindness is a defined as the lack of vision. Such type of vision loss can't be corrected either by contact lens or through glasses.

There are two type of blindness,

  • Temporary Blindness
  • Permanent Blindness

Temporary blindness is a condition where the vision of an individual vision is limited.

Permanent Blindness is a condition where an individual can't see anything even the light

8 0
3 years ago
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