Biology 2H FINAL

Front

What is the primary function of red blood cells?

Back

To transport oxygen from the lungs to the body's tissues and carry carbon dioxide back to the lungs.

Front

What is the complementary mRNA sequence for the DNA strand G G A C T G A T T?

Back

C C U G A C U A A

Front

What is a key difference between DNA and RNA?

Back

RNA contains uracil instead of thymine.

Front

What are the sugars found in RNA and DNA?

Back

The sugar in RNA is ribose, and the sugar in DNA is deoxyribose.

Front

What are the three components of a nucleotide?

Back

1. Sugar 2. Phosphate 3. Nitrogenous base (A, T, C, or G)

Front

What are purines and pyrimidines?

Back

Purines are double-ringed structures (adenine and guanine), while pyrimidines are single-ringed structures (cytosine, thymine, and uracil).

Front

What is the role of hemoglobin in red blood cells?

Back

Hemoglobin binds to oxygen in the lungs and releases it in the tissues.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides.

Front

What is transcription in the context of genetics?

Back

Transcription is the process of copying a segment of DNA into mRNA.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the sites where mRNA is translated into proteins.