IB Biology D3.2 Pub Quiz: Inheritance

What it covers

IB Biology at SL, with HL cards when you switch the level: D3.2 Inheritance.

The running order

nine rounds and a handout of riddles. Review rounds are drawn from this topic each time you open the quiz, so two classes never get the same paper, and every review round can be redrawn in a click.

1. Riddle me this review
   Course terms as riddles: "I have a head that loves water and two tails that hate it…" Teams write what it is.
2. Close-up fun
   A tiny zoomed-in patch. What's the full picture?
3. Fact or fiction fun
   Myths and true-but-weird facts. Teams write Fact or Fiction.
4. Think it through review
   Scenarios, odd ones out, true or false and why, puzzles: questions to reason through. Give teams a little longer.
5. Films in science-speak fun
   A film plot, described like a research abstract. Name the film.
6. Who am I? Scientists fun
   Three clues, hardest first. 3 points after clue 1, 2 after clue 2, 1 after clue 3.
7. Missing vowels: course terms review
   Your key terms with the vowels taken out.
8. Funny animal noises fun
   YouTube clips of animals making ridiculous noises. Screen off, listen, guess, then watch the reveal.
9. Closest wins fun
   Estimation questions. Nearest team wins the point. Doubles as the tiebreaker.

A taste of the questions

Think it through

Scenarios, odd ones out and true or false and why, from IB Biology.

1. Two tall pea plants, both Tt, are crossed. What fraction of their offspring will be short?
2. A black guinea pig is crossed with a white one (white is recessive). Half the young are white. What is the black parent's genotype?
3. Why do pea plants with genotypes TT and Tt look exactly the same?
4. True or false: a group A mother and a group B father can never have a group O child.
5. Blood group AB, roan cattle with red and white hairs, pink four o'clock flowers from red × white: which is the odd one out?
6. Two pink four o'clock flowers are crossed. What ratio of flower colours do you expect in their offspring?

Riddle me this

Course terms as riddles. Teams write what it is.

1. I hold two different alleles of one gene, yet I can look exactly like my cousin with two dominant ones. What am I?
2. Neither of my alleles backs down: give me Iᴬ and Iᴮ and you get blood group AB. What am I?
3. I'm everything about you that can be seen or measured, from blood group to height, shaped by genes and environment together. What am I?
4. I hold one copy of a recessive allele for a disorder but show no sign of it myself. What am I?
5. Draw me as a little table, gametes along the top and down the side, and I'll predict the offspring. What am I?

Quickfire

Short recall from the same topics.

1. Having one set of chromosomes
2. One of the versions of a gene
3. The alleles an organism carries