Curly Hair and Genetics: Test Your Knowledge!
Anonymous User
Created 6/24/2024
Think you're a curly hair expert? Put your knowledge to the test and see how many facts about curly hair and genetics you can get right!
1. Which SNP in the TCHH gene accounts for about 6% of hair curliness?
rs11803731
rs4752566
rs3827760
rs7902371
2. The TCHH gene encodes a protein called _____ which is highly expressed in hair follicles.
Keratin
Trichohyalin
Melanin
Myosin
3. Caucasians carrying the T-allele of SNP rs11803731 are more likely to have what kind of hair?
4. What amino acid change is caused by the T-allele at position 790 of the TCHH gene?
Methionine to Leucine
Leucine to Methionine
Alanine to Glycine
Glycine to Alanine
5. Which gene in the Asian population contributes to the thick-hair trait?
6. The derived G-allele of the SNP rs3827760 in the EDAR gene leads to what hair characteristic?
Thin and straight
Thick and coiled
Thick and straight
Thin and wavy
7. Curly hair is considered to be a _____ trait in Caucasians.
Recessive
Dominant
Intermediate
Non-hereditary
8. Straight hair evolved_____ during human history.
very early
recently
simultaneously
randomly
9. Which SNP in the FGFR2 gene is associated with increased hair follicle growth and thicker hair in Asians?
rs11803731
rs4752566
rs3827760
rs7902371
10. Curly hair being a dominant trait means that a person will have curly hair if they have _____.
two curly hair alleles
one curly hair allele and one straight hair allele
two straight hair alleles
one wavy and one curly hair allele
11. What percentage of Caucasians have wavy hair?
12. In certain parts of Asia, almost all people have which genotype for SNP rs3827760?
13. Which amino acid modification is linked with thicker hair in Asians?
Leucine to Methionine
Glycine to Alanine
Serine to Threonine
Valine to Isoleucine
14. Which gene's activity was found to cause enlarged skin and eyelid glands?
15. What evolutionary advantage might thick hair have provided during the Ice Age?
Heat dissipation
Enhanced protection against UV radiation
Better insulation against cold
Water repellency
