Which of the following terms represents a pair of contrasting characters or factors?
Allele
Phenotype
Homozygous
Heterozygous
Which contribute to the success of Mendel?
Qualitative analysis of data
Observation of distinct inherited traits
His knowledge of biology
Consideration of one character at one time
Law of independent assortment can be proved on the basis of which of the following ratios:
3 : 1
2 : 1 : 1
9 : 3 : 3 : 1
2 : 1
Two homologous genes are exactly similar in genotype called:
Hemizygous
None of these
Blue eye colour is recessive to brown eye colour. A brown eyed man whose mother was blue eyed marries a blue eyed women. The children shall be
Both blue eyed and brown eyed 1 : 1
All brown eyed
All blue eyed
Blue eyed and brown eyed 3 : 1
Visible characteristics of an organism are called:
Phenotypes
Genotypes
Haploid are able to express both recessive and dominant alleles/mutations because there are
Many alleles for each gene
Two alleles for each gene
Only one allele for each gene in the individual
Only one allele in a gene
Triticale has been evolved by intergeneric hybridization between
Wheat and rye
Wheat and rice
Rice and maize
Wheat and aegilops
