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Aloiza [94]
2 years ago
15

Can you guys help me??? Why does dna polymerase can't synthesize the ends of linear dna?

Biology
1 answer:
Lunna [17]2 years ago
3 0

Answer:

DNA pol uses the energy provided by hydrolysis of the high-energy phosphate bond at the 5' end of the incoming nucleotide to add it to the 3' end of the growing DNA.Without the high-energy phosphate bond, the correct nucleotide can not be added.

Explanation:

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The indentation on the medial surface of each lung through which pulmonary and systemic blood vessels, bronchi, lymphatic vessel
natulia [17]

Answer:

Hilum.

Explanation:

Hilum may be defined as the type of the depression or the fissure and may present in kidney known as kidney hilum, present on spleen and the lungs. This is also known as hilus.

The hilum marks the entry and exit of the nerves and the blood vessels. The lung hilum is a triangular like depression through which the blood vessels, capillaries and the nerves enter and leave in the lungs and connects the other organ of the body.

Thus, the correct answer is option (d).

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=Write%5C%3Ba%5C%3Bstory%5C%3Babout%5C%3Byour%5C%3Bbest%5C%3Bfishing%5C%3Btrip%21%5C%5C%5C%5C50
bearhunter [10]

Answer:

When I first read this question, all I could think about was the capsized fishing charter called, “the Erik”. The inept captain and crew of this boat caused the death of four passengers while three others remain missing. This disaster occurred back in 2011. I knew two of the passengers. One was recovered in 2013. The other is still listed as missing. However, this question concerns the “best story”. So, I’ll give you the accounts of my own experience. Back in 2013, my group of long-range fishing friends had chartered our annual 8-day trip out of Point Loma, San Diego. We had always chartered the same boat; the Shogun. At our traditional dinner the night before boarding, I remember the most notable topic being discussed was the remnants of Hurricane Ingrid. Ingrid had caused high winds and seas in the area where we wanted to fish.

5 0
3 years ago
Please help me answer these questions!! :) (50 Points) Take your time!!!
PSYCHO15rus [73]

All plants have a life cycle that consists of two distinct forms that differ in size and the number of chromosomes per cell. In flowering plants, the

A hibiscus flower, showing anthers, five stigmas, and pollen.

A hibiscus flower, showing anthers, five stigmas, and pollen.

large, familiar form that consists of roots, shoots, leaves, and reproductive structures (flowers and fruit) is diploid and is called the sporophyte. The sporophyte produces haploid microscopic gametophytes that are dependent on tissues produced by the flower. The reproductive cycle of a flowering plant is the regular, usually seasonal, cycling back and forth from sporophyte to gametophyte.

The flower produces two kinds of gametophytes, male and female. The female gametophyte arises from a cell within the ovule , a small structure within the ovary of the flower. The ovary is a larger structure within the flower that contains and protects usually many ovules. Flowering plants are unique in that their ovules are entirely enclosed in the ovary. The ovary itself is part of a larger structure called the carpel, which consists of the stigma, style, and ovary. Each ovule is attached to ovary tissue by a stalk called the funicle. The point of attachment of the funicle to the ovary is called the placenta.

As the flower develops from a bud, a cell within an ovule called the archespore enlarges to form an embryo-sac mother cell (EMC). The EMC divides by meiosis to produce four megaspores. In this process the number of chromosomes is reduced from two sets in the EMC to one set in the megaspores, making the megaspores haploid. Three of the four megaspores degenerate and disappear, while the fourth divides mitotically three times to produce eight haploid cells. These cells together constitute the female gametophyte, called the embryo sac.

hope it helps


3 0
3 years ago
Individuals with Down syndrome have an extra chromosome 21. This is an example of which type of chromosome disorder?
Lina20 [59]
The correct answer is choice B. Nondisjunction.

Nondisjunction disorder occurs when either the homologous chromosomes or the sister chromatids fail to disconnect properly during cell division. This failure results in daughter cells with an abnormality in chromosomes. 

I hope this helps you and have an awesome day!! :)
8 0
3 years ago
How do cells maintain water balance through osmosis?<br> URGENT!! SOMEONE PLS ANSWER
Dimas [21]

***see attached pic***

4 0
3 years ago
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