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Complete Table 4.1 to show how sex is inherited in humans. Table 4.1 cell sex chromosomes present female gamete male gamete female zygote ea Fae ne male zygote a Fae ne
See it on the paper →State the sex chromosomes found in male gametes in humans. or
See it on the paper →The fractions obtained from petroleum have different uses. On Fig. 2.1, draw one line from each fraction to its use. One line has been drawn for you. fraction use cooking fuel bitumen diesel engine fuel gas oil petrol engine fuel gasoline road surfaces Fig. 2.1
See it on the paper →Complete Fig. 7.3 to show how sex is inherited in humans. male sex chromosomes X Y female sex chromosomes Fig. 7.3
See it on the paper →Use Fig. 7.3 to determine the ratio of male offspring to female offspring. male : female
See it on the paper →Complete Table 10.1 to show the inheritance of sex. Table 10.1 male sex chromosomes X X XX XY female sex chromosomes
See it on the paper →Many candidates correctly suggested X and Y as the sex chromosomes found in male gametes in humans.
— Examiner report, February/March 2023, 0654/32 Q4(b)(iii) (Cambridge)
The use for bitumen was usually correct but few candidates knew that gas oil is used as fuel in diesel engines.
— Examiner report, October/November 2022, 0654/33 Q2(c) (Cambridge)
Most candidates were able to state the correct sex chromosomes.
— Examiner report, February/March 2021, 0654/32 Q10(b)(i) (Cambridge)
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