Answer:
The order of genes is- dp-cl-ap
Explanation:
The genes a be mapped on chromosome on the basis of the recombination frequency as the recombination shows that is the genes are linked or not. In genetic mapping, 1 per cent recombination frequency is considered as 1 cM or map distance.
In the given question, the three gene distance are provided on the basis of which the gene can be mapped in the following manner:
1. Take the higher value of gene distance that is 42 m.u and plot them on the line,
2. now place second-highest value on the line that is 39 m.u.
3. The gene will be arranged in the order of dp-cl-ap.
4. dp--³---cl-----------³⁹---------------------ap.
Thus, dp-cl-ap is correct.
Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.
Explanation:
Geological time starts with Precambrian time.
Geologically, time is divided between the Precambrian era and present time into era.
The three eras are Paleozoic era, Triassic period and Cenozoic era.
Era is further divided into periods.
Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.
Geologic scale is the record of events in earth's history and evolution.
Sound cannot travel through a vacuum. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.
