This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.
Q1— Section header —
1.1Various options are provided as possible answers to the following questions. Write down the question number (1.1.1
1.1\, choose the answer and make a cross (X\ over the letter (A D\ of your choice in the ANSWER BOOK. EXAMPLE:
1.1.1
1.1.2difference between DNA and RNA: RNA is double stranded and DNA is single stranded DNA has a sugar phosphate frame whereas RNA does not There are
1.1pedigree diagram show how organisms evolve the inheritance of characteristics over many generations sex linked characteristics
1.1.4A red flowering plant is crossed with a white flowering plant. All the offspring have pink flowers. When the two pink flowering plants re crossed, the next generation flowering plants will have flowers
1.1Which ONE f the following event occur during metaphase I of meiosis? Homologous c hromosome
1.1.8Comparisons of the amino acid sequences in a protein have been made between humans and a number of other organisms. The number of differences is shown in the table below. ORGANISM SHARK KANGAROO FISH COW
1.1.5
1.1.6The difference between nucleic acids and nucleotides is that ... Amino acids
1.2Give the correct biological term for each of the following descriptions. Write only the term next to the question number (1.2.1 to 1.2.7\ in the ANSWER BOOK.
1.2.7A s udden chan in the sequence/order of nitrogenous bases o nucleic acid Explanation of an observation that i s supported by facts, models and laws
1.3Indicate whether each of the statements in COLUMN I applies to A ONLY B ONLY BOTH A AND B or NONE of the items in COLUMN II. Write A only B only
1.3.1Occurs during telophase of meiosis A: B: Dividing of the cytoplasm Centrioles move to the opposite
1.3.2Location of DNA A: B: Nucleus Mitochondria
1.3.3Found in African apes and humans A: B: Claws instead of nails An opposable thumb (3 x 2\
1.4.1How many million years ago did the: (a\ (b\ Apes appear on Earth Common ancestor evolve to form the Tarsiers and Lemurs (1\
1.4.3Which TWO species share the most recent common ancestor? Which species is most closely related to the Lemur (2\ (1\ (5\ Lorises Lemurs
1.5The diagrams below represent a chromosome pair in a female human cell The cell and show
1.5.2How many pairs of chromosomes occur in a normal human cell? Give labels for: (1\ (a\ (b\ tructure Area (1\ (1\
1.5.4Name the organ in the human female where meiosis occur Name the (1\ (a\ (b\ (c\
1.5.5rrange the letters and to show the correct sequence of the events (1\ (8\
1.6Coat colour in mice is controlled by two alleles, lack ( \ and grey Tail length is controlled by two alleles long \ and short (
1.6Give the (a\ (b\ (c\ enotype of parent henotype of parent Genotype of offspring (i\
1.6.2What percentage of the offspring above is grey with short tails
1.6.3State the genotypes of TWO gametes from the table above that will result in offspring that are heterozygous for both traits
Q2— Section header —
2.1Read the passage below. NEW HOMININ SPECIES DISCOVERED On 13 September 2013 scientists discovered fossils in the Sterkfontein Caves South Africa which appeared
2.1.5Define the term transitional fossil Name characteristic from the passage that Homo naledi
2.3.2Which nucleic acid is represented in both sequences Where did the mutation in the second sequence occur (1\ (1\ The table below show the amino acids
2.3Give the:
2.4(a\ (b\ nticodon of the fourth base triplet on sequence Amino acid coded for by
Q3— Section header —
3.1Which ONE of the children has been adopted
Q3— Section header —
3.2Human b lood groups are controlled by multiple alleles
3.2.3How many alleles control blood groups? Which TWO alleles are codominant in the inheritance of blood groups? A man is heterozygous for blood group A and marries a woman who has blood group O. Use a genetic cross to show the
3.3Haemophilia is a genetic disorder caused by a recessive allele on the chromosome. haemophiliac female marries a normal male. Explain why a ll their sons will be haemophiliac (4\
3.4.5List FOUR steps that the scientists followed to obtain their results. Name the independent variable of this investigation. Describe the relationship between the number of finches during the
Q3— Section header —
Q4— Section header —