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#	Question	Subject and topic	Difficulty
1321	Bergmann's rule states that within a widely spread warm-blooded species, populations in colder regions tend t…	Anthropology Human variation	Easy
1322	Why is darker skin common among populations that have lived for many generations near the equator?	Anthropology Human variation	Medium
1323	A plains-dwelling visitor to a high mountain region breathes faster and produces more red blood cells within …	Anthropology Human variation	Medium
1324	A population of herders with a long history of drinking animal milk shows a high frequency of adults who can …	Anthropology Human variation	Hard
1325	Which law states that the two alleles of a gene separate into different gametes?	Anthropology Human genetics	Easy
1326	Haemophilia is much more common in men than in women because it is	Anthropology Human genetics	Easy
1327	Two parents with normal pigmentation have a child with albinism, an autosomal recessive trait. What is the ch…	Anthropology Human genetics	Medium
1328	Beard growth is controlled by genes present in both sexes but is normally expressed only in males. Such a tra…	Anthropology Human genetics	Medium
1329	A woman who is a carrier of red–green colour blindness marries a man with normal vision. What proportion of t…	Anthropology Human genetics	Hard
1330	How many chromosomes are present in a normal human body (somatic) cell?	Anthropology Chromosomes and their aberrations	Easy
1331	Down syndrome is caused by	Anthropology Chromosomes and their aberrations	Easy
1332	A karyotype shows 47 chromosomes with the sex chromosomes XXY. The person is most likely to have	Anthropology Chromosomes and their aberrations	Medium
1333	A segment of chromosome breaks off and reattaches to a different, non-homologous chromosome. This structural …	Anthropology Chromosomes and their aberrations	Medium
1334	If the two X chromosomes fail to separate during egg formation, an egg may carry no X at all. If this egg is …	Anthropology Chromosomes and their aberrations	Hard
1335	Which force of evolution is the ultimate source of all new genetic variation?	Anthropology Forces of evolution	Easy
1336	Movement of genes from one population into another through migration and intermarriage is called	Anthropology Forces of evolution	Easy
1337	A small group of families settles on an isolated island and, by chance, one of them carries a rare recessive …	Anthropology Forces of evolution	Medium
1338	Why does the sickle-cell allele remain common in some malaria-affected regions even though homozygotes suffer…	Anthropology Forces of evolution	Medium
1339	In a population in Hardy–Weinberg equilibrium, 16% of people show a recessive trait. What is the frequency of…	Anthropology Forces of evolution	Hard
1340	Who discovered the ABO blood group system?	Anthropology Genetic markers	Easy