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295 questions found · practise this subject as a set Show 20 · 50 per page

#	Question	Subject and topic	Difficulty
61	Which of the following STIs is not completely curable?	Biology/Biological Studies/Biotechnology/Biochemistry Sexually transmitted infections	Easy
62	Which practice helps prevent STIs?	Biology/Biological Studies/Biotechnology/Biochemistry Sexually transmitted infections	Easy
63	Hepatitis B can spread through all of the following routes except	Biology/Biological Studies/Biotechnology/Biochemistry Sexually transmitted infections	Medium
64	Why may STIs in women often remain untreated for a long time?	Biology/Biological Studies/Biotechnology/Biochemistry Sexually transmitted infections	Medium
65	A woman with an untreated STI develops a pregnancy in the fallopian tube. This complication is called	Biology/Biological Studies/Biotechnology/Biochemistry Sexually transmitted infections	Hard
66	In ZIFT, the zygote or early embryo is transferred into the	Biology/Biological Studies/Biotechnology/Biochemistry Infertility and assisted reproduction	Easy
67	The technique in which a sperm is directly injected into an ovum is	Biology/Biological Studies/Biotechnology/Biochemistry Infertility and assisted reproduction	Easy
68	An embryo with 16 blastomeres formed by IVF is to be transferred. Which method is suitable?	Biology/Biological Studies/Biotechnology/Biochemistry Infertility and assisted reproduction	Medium
69	A husband has a very low sperm count, but the wife is normal. Which simple ART technique is usually tried fir…	Biology/Biological Studies/Biotechnology/Biochemistry Infertility and assisted reproduction	Medium
70	A woman cannot produce ova, but her fallopian tubes and uterus are normal. A donor ovum is placed into her fa…	Biology/Biological Studies/Biotechnology/Biochemistry Infertility and assisted reproduction	Hard
71	In a monohybrid cross between pure tall and pure dwarf pea plants, what is the genotypic ratio in F₂?	Biology/Biological Studies/Biotechnology/Biochemistry Mendelian inheritance	Easy
72	Crossing an F₁ hybrid with its homozygous recessive parent to determine its genotype is called a	Biology/Biological Studies/Biotechnology/Biochemistry Mendelian inheritance	Easy
73	A tall pea plant crossed with a dwarf plant gives 52 tall and 48 dwarf offspring. What is the genotype of the…	Biology/Biological Studies/Biotechnology/Biochemistry Mendelian inheritance	Medium
74	In a dihybrid cross between RRYY and rryy pea plants, how many of 1600 F₂ plants are expected to be round and…	Biology/Biological Studies/Biotechnology/Biochemistry Mendelian inheritance	Medium
75	What fraction of the F₂ in a dihybrid cross (AaBb × AaBb) is expected to be homozygous for both genes?	Biology/Biological Studies/Biotechnology/Biochemistry Mendelian inheritance	Hard
76	A red snapdragon is crossed with a white one and the F₁ is pink. This is an example of	Biology/Biological Studies/Biotechnology/Biochemistry Deviations from Mendelism	Easy
77	How many genotypes are possible for the human ABO blood group gene with alleles Iᴬ, Iᴮ and i?	Biology/Biological Studies/Biotechnology/Biochemistry Deviations from Mendelism	Easy
78	Parents with blood groups A (Iᴬi) and B (Iᴮi) have a child. Which blood groups are possible?	Biology/Biological Studies/Biotechnology/Biochemistry Deviations from Mendelism	Medium
79	Human skin colour shows a continuous range of shades. This is best explained by	Biology/Biological Studies/Biotechnology/Biochemistry Deviations from Mendelism	Medium
80	In snapdragon, what proportion of F₂ plants from a pink × pink cross will breed true?	Biology/Biological Studies/Biotechnology/Biochemistry Deviations from Mendelism	Hard