DNA &/or Meiosis
Inheritance
Punnett Squares &/or Pedigrees
Random Variety
100
Label all components of the following molecule:
100
Observe the following chromosome:
What is the probability that genes q42 and q36 will separate during crossing over?
40%
100
When reading a pedigree chart, which of the following patterns would best indicate that a trait is autosomal dominant?
a) All males are affected
b) All affected individuals have at least one affected parent
c) The trait can disappear from a branch and reappear in a future generation
d) In a large sample, there are approximately equal number of affected males and females
b) All affected individuals have at least one affected parent
100
Name (or say/announce) the meme that involves NBA star LaMelo Ball.
6 7
...
200
Give the complementary bases for the following DNA sequence:
TAC TTG AGT CAG AAG ACG GAC
ATG AAC TCA GTC TTC TGC CTG
200
Explain how crossing over and independent assortment both increase genetic variety in offspring.
Crossing over:
Creates recombinant chromosomes in non-sister chromatids during prophase I. Each gamete will give a mix of paternal and maternal traits
Independent assortment:
Swaps positions of homologous chromosomes during metaphase I. Each gamete will hold a mixture of paternal and maternal chromosomes (some of which will be recombinants)
200
Study the following alleles and phenotypes for eye colour:
Alleles
EB - Brown pigment
EG - Green pigment
e - Blue pigment
Phenotypes
EBEB or EBe - Brown eyes
EBEG - Hazel (Green with sections of brown) eyes
EGEG or EGe - Green eyes
ee - Blue eyes
In a family of 6, all four children have different eye colours. Give the genotypes of the parents.
EBe & EGe
200
Approximately how much money did it cost to make the 24 karat gold Labubu (according to TikTok user lilzbullzmarbella2)?
£ 20,000
300
Identify/name all chromosomal abnormalities in the karyotype below:
Tetrasomy 8
Monosomy X
300
Excessive UV exposure (e.g., from the sun) can cause changes in methylation patterns in the DNA of skin cells, in addition to triggering the release of melanin.
These methylation changes can then be passed down to future daughter cells, when they eventually divide by mitosis.
Give the term that best describes epigenetic changes being passed down in mitotic daughter cells, but not in gametes.
Somatically Heritable
300
Complete a dihybrid cross for the following parents on the area to the left side of the whiteboard:
TtBB x ttBb
300
What's her name?
Makka Pakka
400
A human cell has 46 chromosomes in total. How many chromatids will be in a cell:
a) before Metaphase I
b) after cytokinesis II (end of Meiosis II)
a) 92 chromatids
b) 23 chromatids
400
Skin tone is thought to be determined by two types of the pigment melanin: Eumelanin and Pheomelanin.
Eumelanin is responsible for darker tones (e.g., black-ish, brown-ish colours), whereas pheomelanin is responsible for lighter, red-ish, pink-ish, or yellow-ish colours)
Examples of some (there's so many) of the alleles and phenotypes are below:
TB - Black pigment
Tb - Brown pigment
Tr - Red pigment
Ta - Yellow pigment
Tp - Beige pigment
t - Pale beige pigment
Possible Phenotypes (non-exhaustive list)
TBTb, TBTr, TBt - Black skin
TbTb - Chestnut Brown skin
TbTr - Mahogany Brown skin
TpTb - Dark Beige skin
a) What is the dominance pattern between Black pigment and Pale Beige pigment?
b) What is the dominance pattern between red pigment and yellow pigment?
a) Complete Dominance
b) Incomplete Dominance
400
List the inheritance patterns that are not possible for the trait displayed in the Pedigree Chart below.
X-Linked Recessive
X-Linked Dominant
400
Which game studio produces and publishes the 3D fighting game series Tekken?
Bandai (Namco Entertainment)