1. homologous and vestigial organs
2. analogous and vestigial organs
3. homologous organs only
4. homologous and analogous organs
homologous and vestigial organs
1. gymnosperms are dominant plants and first birds appear
2. radiation of reptiles and origin of mammal like reptiles
3. dinosaurs become extinct and angiosperms appear
4. flowering plants and first dinosaurs appear
gymnosperms are dominant plants and first birds appear
1. Phylogeny
2. Ancestry
3. Paleontology
4. Ontogeny
Phylogeny
1. Flower colour in Mirabilis jalapa
2. Production of male honey bee
3. Pod shape in garden pea
4. Skin colour in humans
Skin colour in humans
1. Only round seeds with green cotyledons
2. Only wrinkled seeds with yellow cotyledons
3. Only wrinkled seeds with green cotyledons
4. Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons
Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons
1. R. Franklin
2. Hershey and Chase
3. A. Garrod
4. Beadle and Tatum
Beadle and Tatum
1. 20 nm
2. 0.34 nm
3. 3.4 nm
4. 2 nm
3.4 nm
1. crossing between two genotypes with recessive trait
2. crossing between two F1 hybrids
3. crossing the F1 hybrid with a double recessive genotype
4. crossing between two genotypes with dominant trait
crossing the F1 hybrid with a double recessive genotype
1. one strand turns anti-clockwise
2. the phosphate groups of two DNA strands, at their ends, share the same position
3. the phosphate groups at the start of two DNA strands are in opposite position (pole)
4. one strand turns clockwise
the phosphate groups at the start of two DNA strands are in opposite position (pole)
1. all normal visioned
2. one-half colourblind and one-half normal
3. three-fourths colourbling and one-fourth normal
4. all colourblind
all colourblind