LIFE SCIENCES P2 2023 May/June SectionA Question1.4.1-1.6.3

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.1 Give the:
(a) Phase of meiosis represented

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.1 Give the:
(b) Number of chromatids shown

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.1 Give the:
(c) Number of homologous chromosome pairs

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.2 Identify structure:
(a) R

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.2 Identify structure:
(b) S

1.4 The diagram below represents a cell in an early stage of meiosis.

1.4.2 Identify structure:
(c) T

1.4.3 (a) Name an organ in Male animals where meiosis occurs.

1.4.3 (b) Name an organ in female animals where meiosis occurs.

1.5 The brinjal plant carries edible fruit. Scientists have been studying the
inheritance of two genes, one for stem texture and the other for fruit shape.
The stems can be smooth (N) or prickly (n), while the fruit shape can be
round (R) or elongated (r).

1.5.1 Name the type of cross that studies two characteristics.

1.5.2 State the:
(a) Dominant characteristic for stem texture

1.5.2 State the:
(b) Recessive characteristic for fruit shape

1.5.3 Give the:
(a) Genotype of a plant with a prickly stem and elongated fruit

1.5.3 Give the:
(b) Phenotype of a plant with the genotype NnRR

1.6 The table below shows information on selected hominid fossils.

1.6.1 Name fossil P.

1.6 The table below shows information on selected hominid fossils.

1.6.2 Identify the species at R.

1.6 The table below shows information on selected hominid fossils.

1.6.3 Give the name of the scientist at:
(a) Q

1.6 The table below shows information on selected hominid fossils.

1.6.3 Give the name of the scientist at:
(b) S