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Fofino [41]
3 years ago
12

The periodic table was put together by a man named blank in the year blank

Biology
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0
In 1869 Mendeleev put together the periodic table
PolarNik [594]3 years ago
8 0

Dmitri Mendeleev in 1869

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Can you help me ifts science and I’ll give you a branlist list please help me
MissTica

Answer:

The answer is A!

Explanation:

Because liquids and gases move, soilds will stay in place unless you move it.

8 0
3 years ago
How did Hershey and Chase ""label"" viral DNA and viral protein so that they could be distinguished? Explain why they chose each
vlabodo [156]

Answer:

As DNA contain phosphorus in its structure in large amount, therefore, Harshey and Chase labeled DNA with radioactive phosphorus and because protein contains some amino acids which have sulfur so they labeled T2 bacteriophage protein with sulfur.

So after that they infected E.coli bacteria with radioactively labeled phages and after centrifugation, they have found that pellet which contains cells is showing the presence of radioactive phosphorus and supernatant which have T2 phage capsid protein showing the presence of radioactive sulfur.

Therefore by labeling viral protein and viral DNA they found that DNA is the genetic material not protein.

7 0
3 years ago
HELP ME PLEASE 10 POINTS
lbvjy [14]

Answer:

b

Explanation:

3 0
3 years ago
Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human X chromosome. The patient
klio [65]

Answer:

One-half of the daughters of an affected man would have this condition.

Explanation:

Each daughter born to a woman that is positive for a dystrophin mutation on one of her two X chromosomes possess a 50 percent likelihood of possessing the mutation and also becoming a carrier. Carriers at times do not show the disease symptoms but may give birth to a child that has the mutation or the disease condition. DMD carriers do have a higher chance of cardiomyopathy.

A man with DMD cannot transfer the affected gene to his sons since he passes to his son a Y chromosome, not the X chromosome. But he will definately transfer it to his daughters, since each daughter possess her father’s only X chromosome resulting in the daughters being carriers.

Hence, One-half of the daughters of an affected father and a carrier mother could have this condition.

3 0
3 years ago
glucose levels go up in the bloodstream after a meal. beta cells of the pancreas detect the elevated glucose levels. this causes
Keith_Richards [23]

The secretion of insulin into the bloodstream is done through exocytosis and absorption through the capillary arteries.

Insulin is a protein required to process sugar. This is a <u>naturally produced protein</u> for which the pancreas is responsible. The insulin Protein is considered a transport protein. It is responsible for carrying glucose from the bloodstream into cells to be used as energy.

This protein is of vital importance. The secretion of this protein is done through exocytosis, which means that after passing through the ribosomes and the Golgi, it is contained within a membrane, which will then fuse into the plasmatic membrane and be released from the cell. It is then absorbed through the capillaries to enter the bloodstream.

To learn more:

brainly.com/question/6658031?referrer=searchResults

4 0
2 years ago
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