• Each chromosome contains many genes that direct the production of proteins needed by cells.

    VOA: special.2010.03.23

  • But some people are born with an extra copy of the twenty-first chromosome.

    VOA: special.2009.09.09

  • Miscarriages are usually caused by chromosome problems that prevent the baby from developing.

    VOA: special.2010.08.11

  • A chromosome contains molecules of deoxyribonucleic acid, better known as DNA.

    VOA: special.2009.12.08

  • "When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

    VOA: special.2009.12.01

  • "We are here today to announce the first synthetic cell -- a cell made by starting with the digital code in the computer, building the chromosome from four bottles of chemicals, assembling that chromosome in yeast, transplanting it into a recipient bacterial cell and transforming that cell into a new bacterial species."

    VOA: special.2010.07.20

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定