Một phân tử mARN có chúa 899 liên kết hóa trị giữa các ribônuclêôtit và có tỉ lệ một số loại ribônuclêôtit là 10% uraxin, 30% ađênin. Số liên kết hiđrô của gen đã sao mã ra phân tử mARN nói trên là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Many customs in Tet come from traditions which have passed from generation to generation

  and have become standards.

• Find a mistake in the four underlined parts of the sentence and correct it:

  According to a new study, every 3 months the rate of Internet use increases by 25%, that is substantial.

• Find a mistake in the four underlined parts of the sentence and correct it:

  More and more people are becoming addicted to the Internet and finding it difficult for them

  to stop using it.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Mobile phones have had a significantly impact on telephone networks.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Mobile phone subscriptions now outnumber fixed-line one in many markets.

• Find a mistake in the four underlined parts of the sentence and correct it:

  The sale of mobile phones in 2005 was totally about 816.6 million subscribers with that

  figure being almost equally sharing among the markets.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Nearly 2,000 people climbing Mount Everest and at least 202 have died when trying to

  summit the mount, and the corpses have been left on the mountain.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Brent Bishop is the leader of the Sagarmatha Environmental Expedition (SEE), a nonprofit

  organization which established to clean Everest.

• Find a mistake in the four underlined parts of the sentence and correct it:

  The US’s oil consumption is approximately 21 million barrels a day, howeve production

  that is only 6 million barrels a day.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Over two decades Vietnam has emerged as an important regional produce of oil and natural

  gas in Southeast Asia.