LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?
A
The color patterns of the offspring of each species
B
How much the size ranges of the two species differ
C
The methods of protein synthesis that each species uses
D
How closely related the two species are to each other.
Explanation: 

Detailed explanation-1: -How can the ancestry of the lizards from the genus Gallotia be best supported by this information? The common ancestor of the lizards probably came from Africa. Genome maps provide the DNA sequences of chromosomes.

Detailed explanation-2: -There are four main types of genome-wide repeat, called LINEs (long interspersed nuclear elements), SINEs (short interspersed nuclear elements), LTR (long terminal repeat) elements and DNA transposons. Examples of each type are seen in this short segment of the genome.

Detailed explanation-3: -Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.

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