IB Biology Genetics Concepts

This video tutorial explains the applications and skills related to IB Biology topic 3.2 on chromosomes. It covers the comparison of genome sizes in five organisms, the diploid number of chromosomes in five species, and the skill of identifying the locus of a human gene. The video provides detailed examples and instructions for creating data tables and using online resources to find gene information.

What is the main purpose of this video tutorial?

• To explain the applications and skills for IB Biology exams.

• To discuss the evolution of species.

• To teach laboratory techniques in biology.

• To provide a detailed history of genetics.

Which organism has the smallest genome size among those compared in the video?

• E. coli

• Fruit fly

• T2 bacteriophage

• Human

What is the genome size of humans in million base pairs?

• 140 million

• 3,000 million

• 5 million

• 150,000 million

Which organism has the largest genome size among those compared?

• E. coli

• Human

• Fruit fly

• Woodland plant

What does the term 'diploid' refer to in the context of chromosomes?

• Having three chromosomes of each type

• Having no chromosomes

• Having two chromosomes of each type

• Having one chromosome of each type

Which species has the highest number of chromosomes in diploid cells?

• Human

• Chimpanzee

• Dog

• Rice

Why is the diploid number of chromosomes always an even number?

• Because of random genetic mutations.

• Because of environmental factors.

• Because odd numbers are unstable.

• Because chromosomes are always paired.

What does 'p' refer to in the gene locus notation?

• The long arm of the chromosome

• The centromere

• The chromosome number

• The short arm of the chromosome

In the gene locus '11 p15', what does '11' signify?

• The gene's function

• The specific location on the arm

• The arm of the chromosome

• The chromosome number

What is the purpose of using OMIM.org in the assignment?

• To find the gene's evolutionary history

• To visualize chromosome structures

• To identify the gene's locus and function

• To compare gene sequences