Match each boxed chemical interaction in the structures below with the appropriate description. 10 pts van der Waals interaction phosphodiester bond

Question 1 Shown below are the structures of three amino acids

MIT Biology Department 7.012: Introductory Biology -Fall 2004 Instructors: Professor Eric Lander, Professor Robert A Weinberg Dr Claudette Gardel BigIdear At the molecular level, biology is based on three- dimensional interactions of complementary molecular surfaces Other important concepts

Please print out this problem set and record your answers on the printed copy. answers to this problem set are to be turned in at the box outside by 4: 10 wednesday

Question 1 You have two pure-breeding colony of mice. Colony I mice have black fur and long tails, Colony II mice have golden fur and short tails You cross mice from each of these colonies

Below is an electron micrograph of a single gene being transcribed. The DNA strand runs horizontally with RNa transcripts extending vertically outward Image removed due to copyright reasons a)Draw an arrow indicating the direction that the RNA polymerases are

A female geneticist has difficulty characterizing flies by their eye color because she herself is red-green colorblind(an X-linked recessive phenotype). She has one sister(colorblind) and one brother(not colorblind)

The hematopoietic system of mammals is a convenient model to use to study development and differentiation. The bone marrow transplantation experiment discussed in lecture indicates that stem cells are more than a figment of some biologist's fertile imagination

The hematopoietic system of mammals is a convenient model to use to study development and differentiation. The bone marrow transplantation experiment discussed in lecture indicates that stem cells are more than a figment of some biologist,'s fertile

1. 皮肤癣菌的常见种类及致病性 2. 白假丝酵母的生物学性状、致病性及微生物学检查 3. 新生隐球菌的生物学性状、致病性及微生物学检查 4. 致病性曲霉的生物学性状、致病性及微生物学检查 第一节 浅部感染真菌 第二节 皮下组织感染真菌 第三节 地方性流行真菌 第四节 机会致病性真菌