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Phantasy [73]
3 years ago
7

Explain why two siblings except identical twins have the exactly the same alleles

Biology
1 answer:
Natali [406]3 years ago
5 0

Answer:

having exactly the same DNA sequences, twins start accumulating genetic variation from the earliest stages of development, researchers at Iceland-based company deCODE genetics found, meaning that one twin harbors variants that aren't present in the other.

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What is a difference between a lens and a mirror
Kitty [74]

Answer:

hi

Explanation:

The lens is a material made of glass or plastic bounded by two surfaces. ... A mirror is a reflector that is shiny from one side and reflects the light rays coming from the object to make it appear as an image to the other side. The lens is of two types viz: Concave lens and convex lens.

have a nice day

7 0
3 years ago
Read 2 more answers
How does Mycobacterium tuberculosis replicate?
morpeh [17]

Answer:

mycobacterium tuberculosis that has to complete successive cycle of transmission,infection and disease

5 0
3 years ago
During the clinical death phase, the individual's regular heartbeat disintegrates, causing muscle spasms and gasping. resuscitat
DIA [1.3K]

Answer:

Heartbeat, circulation, breathing, and brain functioning stop.

Explanation:

Clinical death is the medical term used for the <em>cessation of cardiac function (heartbeat and  therefore circulation) and breathing.</em> <em>It can be reversible with resuscitation,</em> but it has limits, one of these is relative to the brain, more than 3 minutes of clinical death can damage it irreversibly <em>causing brain death as well.</em>

Considering this information we can conclude that the correct answer is "heartbeat, circulation, breathing, and brain functioning stop"

I hope you find this information useful and interesting! Good luck!

3 0
4 years ago
The expression of proteins in E. coli under control by the lac repressor can be induced with IPTG when the cells grow to a densi
KIM [24]
Glucose is the preferable source of energy for E. coli cells. By adding small amounts of glucose, 0.05% in this case, it would enable cell growth to proceed as usual until it has reached mid log growth phase. At this point, the small amount of glucose added should have been depleted and the E.coli cell will now be dependent on lactose present as its source of nutrients. Lactose will also inactivate lac repressors and given the lack of glucose, CAP binding to high amounts of cAMP will be activated and increase expression of lac operon genes.

It should be noted that this system of expression may not tightly regulate the expression of lac operon before the E.Coli reaches exponential phase. As lactose is still present, lac repressors will be inactivated throughout the entire experiment and hence small amounts of proteins might be produced even when not auto-induced. After auto-induction, CAP-cAMP protein complex will simply upregulate expression of lac operon genes.
8 0
3 years ago
DNA contains all of the genetic information for a cell and is often called the
Hatshy [7]

The best answer is B.

DNA is sometimes referred to as the blue print of the cell's information because it is the store house in which all genetic information necessary for the cell's survival and reproduction is kept.

Without DNA, there cannot be any continuation of life and  no new generation of organisms. All living cells and organisms are essentially made up of protein in different forms. Apart from water, proteins are the most abundant molecules in the cell and body where they serves as the major  structural component and are  essential for growth and maintenance. Information for all these proteins is found in DNA. Without DNA, there can be no protein hence no life.


8 0
4 years ago
Read 2 more answers
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