6x2 (12)
1.2
Give the correct biological term for each of the following descriptions
Write only the term next to the question number (1.2.1 - 1.2.7) in the
ANSWER BOOK
1.2.1
All the genes that makes up an organism.
1.2.2
Chromosomes involve in sex determination. Sex ticed
12.3
Two or more alternative forms of a gene at the same locus.
1.2.4
A genetic cross involving only one characteristic at a time.
1.2.5
The outward physical appearance of an individual.
1.2.6
Both alleles of a gene are equally dominant whereby both alleles
express themselves in the phenotype in the heterozygous
12.7
A gene that expresses itself in the phenotype whilst masking the
effect of the recessive gene.
(7)
1.3
Indicate whether each of the statements in COLUMN I applies to A ONLY. B
ONLY, BOTHA AND B or NONE of the items in COLUMN II Write A only, B
only, both A and B or none next to the question number
(1.3.1-1.3.3) in the ANSWER BOOK
COLUMNI
Female sex chromosomes of
humans
1.3.1
COLUMN II
A XX chromosomes
B XY chromosomes​