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3 years ago

Why was the Battle of Yorktown such a devastating defeat for the British?

Biology

1 answer:

jolli1 [7]3 years ago

3 0

Answer:

Cornwallis had marched his army into the Virginia port town earlier that summer expecting to meet British ships sent from New York. ... Cornwallis' surrender at Yorktown effectively ended the Revolutionary War. Lacking the financial resources to raise a new army, the British government appealed to the Americans for peace

Explanation:

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What is the most common source of contamination with e. coli?

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The most common source of contamination with E.coli is by eating contaminated food like meat and eggs.

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3 years ago

How many unique ip addresses could be made in a fixed length ip address system using 6 bits?

MrRissso [65]

Sixty-four (64) unique IP addresses could be made in a fixed length IP address system using 6 bits.
The IP address is a number assigned to any item that is connected to the internet. IP stands for Internet Protocol, it's function to work over a dynamic network. It is composed of two parts, it uniquely identifies a specific interface on the network.

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3 years ago

Which type of mutation causes this translation error that leads to cystic fibrosis? silent missense nonsense deletion

aliya0001 [1]

Answer:

The type of mutation that causes this translation error is called deletion. Deletion occurs when a section of a DNA is deleted or lost. In cystic fibrosis, three nucleotides are deleted that results in the lost of phenylalanine.

Explanation:

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3 years ago

How does a mutation in the DNA affect the way proteins are made?

Vikentia [17]

Explanation:

B.) A mutation in the DNA results in a change in the mRNA and, ultimately, to a different protein structure.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells during cell division, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells.

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

somatic: these only occur within certain cells, and arise from environmental factors such as UV light
hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They exist solely to encode and carry out protein synthesis.

The message on DNA, called genes is copied by RNA polymerase, to form mRNA complementary sequence to that of the DNA strand in transcription. These are then translated into proteins in ribosomes. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

They are maintained within cells, as they form new traits called alleles, which may confer adaptations that increase the fitness of a species, along with ensuring survival by conferring a protective advantage.

e.g. sickle cell anemia, a disease caused by a mutation, confers protection against the disease malaria.

Learn more about mutations at brainly.com/question/4602376

Learn more about mitosis at brainly.com/question/4303192

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

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3 years ago

Which branch of biology is concerned with the naming of organisms

Musya8 [376]

Taxonomy

Explanation:

Taxonomy is contained within a larger branch of biology called systematics. Systematics is concerned with the evolution and relatedness of organisms, as well as the classifications.

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3 years ago

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