Ở đậu hà lan đem lai F1 có kiểu gen giống nhau với 4 cây A, B,C, D có kiểu gen khác nhau thu được kết quả gồm TH1: F1×cây A --->F2
TH1: F1×cây B --->F2: 100% vàng
TH1: F1×cây C --->F2: 105 vàng: 101 xanh
TH1: F1×cây D --->F2: 900 vàng: 298 xanh
a) tìm kiểu gen của P, F1, các cây A, B,C, D. Giải thích kết quả
b) giải thích kiểu gen của P để F1 xuất hiện đồng tính trội?

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides

Por qué crees que los huevos con cáscara se llaman amnióticos?