Practice Questions

TLS Online TPP Program

#Question id: 14923

Which of the following were key reasons for Mendel's success in elucidating his genetic laws?

#Unit 8. Inheritance Biology

Mendel had a strong understanding of the chemical nature of cells and knew DNA was passed on between generations.
MENDEL CAREFULLY ESTABLISHED TRUE BREEDING LINES AND USED THEM IN HYBRIDIZATION EXPERIMENTS CARRIED OUT OVER MULTIPLE GENERATIONS.
Mendel's use of peas as a model organism and his experience with plant breeding in his father's orchard.
Mendel was able to dedicate the efforts of a large research team and arranged to have very large test plots available for growing the numbers of plants required.

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TLS Online TPP Program

#Question id: 3390

#Unit 11. Evolution and Behavior

The average numbers of offspring produced by three genotypes are: GG = 60; Gg = 30, gg = 20. What is the selection coefficient of gg?

TLS Online TPP Program

#Question id: 18711

#Unit 13. Methods in Biology

SYBR green qPCR based on

TLS Online TPP Program

#Question id: 7023

#Unit 5. Developmental Biology

When Chordin mRNA is injected into the dorsal region of Drosophila embryos, it induces:

TLS Online TPP Program

#Question id: 316

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of these noncovalent forces in biological systems is usually the strongest?

TLS Online TPP Program

#Question id: 19845

#Unit 13. Methods in Biology

SYBR Green qPCR method is based on____I_______ with the _____II______ relationship.