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Allushta [10]
3 years ago
12

Xylem and phloem together make up

Biology
1 answer:
stira [4]3 years ago
7 0
Xylem and Phloem make up Vascular Tissue. 

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In a famous experiment, Matthew Meselson and Franklin Stahl grew E. coli cells in a medium containing only the "heavy" isotope o
Alex777 [14]

Answer:

3rd generation = 2 Hybrid DNA molecules + 6 Light DNA

In Percentage 2÷8 × 100 = 25%

25% of the DNA are hybrid

Explanation:

Semi conservative model proposed by Watson and Crick states that one strand of the DNA comes from parent DNA which act as a template for the other newly formed strand.

First generation:

If cells containing 15 N DNA are transferred to a medium with only 14 N then in initial first generation two parent strands becomes separated and act as template for newly synthesized strands. this means that in first generation both DNA molecules are hybrid, one strand of 15 N DNA and other strand of 14 N DNA

Ist generation = 2 Hybrid DNA molecules

Second generation:

In Second generation these two hybrid molecules become unzip. Two strands are 15N and two strands are 14N. All these 4 strands act as template and 4 new strands are synthesized. The molecules of Hybrid DNA is still 2 with 2 molecules of Light DNA.

2nd generation = 2 Hybrid DNA molecules + 2 Light DNA

Third generation:

In Third generation these two hybrid molecules and two light DNA molecules become unzip. Two strands are of 15N and six strands are of 14N. All these 8 strands act as template and 8 new strands are synthesized. The molecules of Hybrid DNA is still 2 with 6 molecules of Light DNA.

3rd generation = 2 Hybrid DNA molecules + 6 Light DNA

In Percentage 2÷8 × 100 = 25%

25% of the DNA are hybrid

4 0
3 years ago
H.L is a 65-year-old Caucasian male diagnosed with Hodgkin’s Lymphoma (NHL) 4 months ago. He just finished receiving his third o
77julia77 [94]

Answer:

The correct answer would be - renal failure, kidney stones, uric acid neuropathy and other complications.

Explanation:

The symptoms of H.J include decreased urine output, flank pain, peripheral edema. H.J. is at risk for acute kidney injury which can result in renal failure due to elevated levels of uric acid, BUN, and creatinine.

Uric acid begins to precipitate in the kidneys and leads to conditions such as uric acid nephropathy and subsequent kidney injury. ECG shows in such patients as elevated heart rate due to hyperkalemia and hypocalcemia.

- Muscle cramps, Diarrhea, Nausea, and vomiting

- Renal failure due to kidney stones because of high uric acid.

8 0
3 years ago
What hormone is responsible for the babies sex
ludmilkaskok [199]
<span>A hormone doesn't determine the gender. Chromosomes do. But the female hormones are estrogen and progesterone and the male is testosterone.</span>
5 0
3 years ago
Choose the appropriate reason for this. In "In the shadow of war" Omovo follows the soldiers and the woman most likely because h
avanturin [10]
In "In the shadow of war" Omovo follows the soldiers and the woman most likely because he <span>yields to the curious whims of boys his age. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has come to your desired help.</span>
8 0
3 years ago
Which type(s) of substances can water dissolve? (select the 3 correct answers that apply)
creativ13 [48]

Answer:

ionic, hydrophillic,polar

Explanation:

non polar compounds dissolve in non polar solvents like alcohol and hydrophobic substances generally repel water .

8 0
2 years ago
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