Introduction

Question 1

Invented genetic mapping

Answer 1

A.H Sturtevant

Question 2

What happens in recombination?

Answer 2

Genetic material is exchanged between two homologous chromosomes during cell division, leeading to genetic diversity. A new combination of alleles is produced.

Question 3

Homologous phenotype and example

Answer 3

Homologous phenotype are traits or characteristics that have the similar function or appearance in different species due to shared ancestry. Such as the forelimbs of vertebrates of other animals; batwings or whale flippers have the same bone structures despite having different functions.

Question 4

Tell me about the law of dominance

Answer 4

It states that one allele can mask the expression of the other. The dominant allele will be manifested while the recessive trait remains hidden unless both alleles are recessive.

Question 5

Person who observed pea characteristics. (provide the year)

Answer 5

Gregor Mendel - 1865

Question 6

Differentiate diploid from haploid

Answer 6

Diploid are cells that carries two copies of the gene whereas haploid are cells that carries one copy of the gene; applicable in gametes

Question 7

People who proposed Chromosome Theory of Inheritance

Answer 7

Walter Sutton and Theodor Boveri - 1902

Question 8

What nitrogenous base is absent in DNA?

Answer 8

Uracil

Question 9

Discovered DNA

Answer 9

Friedrich Miescher- 1869

Question 10

Proposed the chromosome theory

Answer 10

Theodor Boveri and Walter Sutton- 1902

Question 11

Constructed the genetic map

Answer 11

A.H Sturtevant- 1913

Question 12

Determined the structure of DNA

Answer 12

James Watson, Francis Crick, Rosalind Franklin, and Maurice Wilkins- 1953

Question 13

First used plasmid to clone DNA

Answer 13

Herb Boyer and Stanley Cohen- 1973

Question 14

Discovered interruptions (introns) in genes

Answer 14

Phillip Sharp, Richard Roberts, and others - 1977

Question 15

Determined the base sequences of the genomes of two bacteria

Answer 15

Craig Venter, Hamilton Smith - 1995

Question 16

Cloned a sheep (Dolly) from an adult sheep udder cell

Answer 16

Ian Wilmut and colleagues - 1997

Question 17

Used “next generation” sequencing to obtain the first sequence of an Asian (Han Chinese) human.

Answer 17

Jian Wang and colleagues - 2008