identification

Question 1

• were working with
  several traits in sweet peas, notably a gene for purple (P)
  vs. red (p) flowers, and a gene for long pollen grains (L)
  vs. round pollen grains (l).
• discovery of linkage

Answer 1

William Bateson and R.C. Punnett

Question 2

• is the “information molecule”.
• serves as universal
  information-storage molecule
  for all forms of life.

Answer 2

DNA

Question 3

DNA monomers are called

Answer 3

nucleotides

Question 4

purine nitrogenous bases

Answer 4

adenine, guanine

Question 5

pyrimidine nitrogenous bases

Answer 5

cytosine, thymine, uracil

Question 6

This creates consistency in the nucleotide
sequences of the two DNA polymers that join
together to make a chromosome

Answer 6

complementary base pairing

Question 7

• English physical chemist and xray crystallographer expert
  ● Previously worked on x-ray
  diffraction patterns in coal and
  carbon fiber technology in Paris

Answer 7

Rosalind Franklin

Question 8

a linkage in which crossing over does not
occur. In other words, when only parental types are obtained from the test
cross progeny, it refers to absolute linkage.

Answer 8

complete linkage

Question 9

the tendency of DNA sequences that are
close together on a chromosome to be inherited together
during the meiosis phase of sexual reproduction

Answer 9

genetic linkage

Question 10

It occurs during pachytene stage. Non-sister chromatids of
homologous pair twist over each other due to action of enzyme
endonuclease. The chromatids get connected with each other at points
known as chiasmata.

Answer 10

crossing-over

Question 11

In this condition, two chiasmata are formed between non-sister chromatids of homologous chromosomes.

Answer 11

double crossing-over

Question 12

a breeding or a mating between an
individual of dominant phenotype, who could be either
homozygous dominant (SS) or heterozygous (Ss), with an
individual that MUST be homozygous recessive (ss)

Answer 12

test cross