Wine Science

Question 1

What is phenotypic plasticity?

Answer 1

How grapes modify their phenotype based on environmental and human selection pressure

Question 2

What is Ampelography?

Answer 2

The science of vine description and classification based on observation and pictorial illustration of grape vines.

Question 3

What is Ampelology?

Answer 3

The science of wine grape classification based on DNA testing. As well as, identifying the origins of the grapevine cultivar.

Question 4

What are the different methods of Ampelogy techniques and methods?

Answer 4

Ampelographic descriptions and ampelometrics

Biochemical methods

Biomolecular methods

Question 5

What is the most commonly used DNA test for identification of grapevine cultivars today?

Answer 5

Microsatellites

Question 6

What are anthocyanins?

Answer 6

Pigments in the skin of a grape that give the wine and grape it’s color

Question 7

What are the 5 anthocyanins that give a grape color?

Answer 7

Malvin
Petunin
Delphin
Cyanin
Peonin

Question 8

Which anthocynins tend to have less concentration and are broken down easier?

Answer 8

Cyanin and peonin

The anthocynin found in Nebbiolo which is why Nebbiolo can never be dark black

Question 9

What are the two Microsatellites called and which one is used more often?

Answer 9

Chloroplast Microsatellites and Nuclear Microsatellites

Nuclear Microsatellites is used more often

Question 10

What is a bio type?

Answer 10

Bio types are those varieties that are supposedly genetically identical but have obvious morphological and physiological differences. They are members of a grape variety that exhibit phentoypic plasticity by spreading out geographically and adapting to different environments over the centuries