The term ‘Crossing over’ was used by Morgan and Cattell. It is a process in which there is exchange of chromosome segments between non-sister chromatids of a homologous chromosomes. It occurs during pachytene stage of prophase I of meiosis cell division.
Significance of crossing over:
- Crossing over provides genetic variation in all sexually reproducing organisms.
- It creates new combination of genes or genetic recombination and produces hybrids.
Answer:
<em><u>With your group, use a complete sentence to write a rule for how the bases are arranged in the ladder model of DNA. ... The complementary base-pair rule states that adenine and thymine form pairs across two strands, and guanine and cytosine form pairs across two strands.</u></em>
<span>This disorder affects the palatine bones which are in the axial skeleton (includes all that's part of the skull, rib cage, or vertebral column). It is an incomplete fusion the palatines (whether the horizontal parts or the vertical parts) that make up the roof of the mouth.</span>
Florida offers a variety of wildlife because of its weather and big extension of land, it has approximately 47 wildlife management areas found in over 5.5 million acres across the state, the largest wma´s in the United States. In that southern place people can combine sports with hunting or fishing, finding a huge variety of wild species in just one state.
1. D
2. A
3.
4. D
5. A
6. C
7. C
8.
9.
10. B
11. B
12. B
13. C
14. B
15. A
16. D
17.
18. D
19. C
20. A
21. A
22. B
23.
24. A
