Which of the following is most likely the number of base pairs in a bacterial chromosome?

a. 4,000,000
b. 4000
c. 400
d. 40

검증된 단계별 안내

Understand that bacterial chromosomes typically contain a single circular DNA molecule that carries the genetic information necessary for the cell's functions and reproduction.

Recall that bacterial genomes are generally much smaller than eukaryotic genomes but still contain thousands to millions of base pairs to encode essential genes.

Evaluate the options given: 40, 400, 4000, and 4,000,000 base pairs, and consider which size is consistent with known bacterial genome sizes.

Recognize that most bacterial chromosomes range from about 1 million to several million base pairs, making 4,000,000 a plausible number.

Conclude that the most likely number of base pairs in a bacterial chromosome among the options is the largest value, 4,000,000, because smaller numbers are too low to encode the necessary genetic information.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Bacterial Chromosome Size

Bacterial chromosomes typically consist of a single circular DNA molecule containing millions of base pairs. The size varies among species but generally ranges from about 1 million to 10 million base pairs, encoding thousands of genes necessary for bacterial survival and function.

Base Pairs as a Unit of DNA Length

Base pairs (bp) measure the length of double-stranded DNA, representing the number of nucleotide pairs. This unit helps quantify genome size, with larger numbers indicating more genetic information. For bacteria, genome size is usually in the millions of base pairs.

Comparison of Genome Sizes Across Organisms

Bacterial genomes are much smaller than eukaryotic genomes but larger than viral genomes. While viruses may have hundreds to thousands of base pairs, bacteria have millions, reflecting their complexity. Understanding this scale helps identify plausible genome sizes in multiple-choice questions.

Which of the following is most likely the number of base pairs in a bacterial chromosome?a. 4,000,000b. 4000c. 400d. 40