[유전공학, 생체고분자] Genetics a molecular approach(T.A Brown) 연습문제 풀이 10장

소개

학부때 직접 작성한 연습문제 풀이입니다. 시험공부에도 많은 도움이 될 것입니다. 유용한 자료가 되길 바랍니다.

목차

1. Define the following terms:
2. Carefully distinguish between the meaning of the following terms with respect to the control of bacterial gene expression :
4. Explain what is meant by the following terms:
7. Describe the (a) similarities and (b) differences between the ways in which gene expression is regulated at the E. coli lac and Trp operons. Confine your answer to a consideration of just the repressor-operator systems.
10. Outline what is known about the way in which DNA-binding proteins activate transcription.
16. In E. Coli, the galactose operon comprises three structural genes-galK,galT and galE-whose gene products are involved in metabolism of the sugar galactose. There is also a regulatory gene, galR, which codes for a repressor protein that binds to an operator upstream of the gal operon. Galactose acts as an inducer. Describe the events that you would expect to occur in :
17. As we will see in Chapter 12, a mutation is an alteration in nucleotide sequence that may alter the function of a gene, promoter or regulatory site. Deduce and explain the effects of each of the following mutations on expression of the lac operon:

본문내용

1. Define the following terms:

 housekeeping gene : RNA polymerase같은 효소를 발현하거나 기초 대사에 관여하는 부분을 발현시키는 gene을 말한다.
 operator : 작동 유전자. 구조유전자 가까이에 있어서 그 작용을 지배하는 유전자 부분.
 structural gene : cell에서 효소역할을 하거나 구조적인 역할을 하는 부분을 가진 gene.
 catabolite repression : glucose가 많을 때 lac operon 대사를 하지 못하게 하는 것.
 regulatory gene : 다른 gene들의 발현을 조절하는 gene.(예: lacI)

참고자료

· 없음