-Crossing over occurs between prophase 1 and metaphase 1 and is the process where homologous chromosomes pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. It can also happen during mitotic division, which may result in loss of heterozygosity.
There are two questions (1 and 2), answer are provided as such. The cha
Answer to Question 1
Population --> Whole Organism --> Organ system --> Organ --> Tissue --> Cell
Explanation:
- The cell is the simplest, basic and functional unit of life.
- Tissue is a collection of similar cells e.g brain tissue
- Organ is a collection of similar tissues e.g Liver, Lungs
- Organ system refers to a group of closely related organs performing the same function in an organism.
- Organism comprises of well-coordinated organ systems.
- Population refers to the total number of organisms living and breeding together.
Answer to Question 2
Cell --> Genome --> Gene --> Nucleotide
Explanation:
A cell consists of a nucleus and other organelles. Within the nucleus & other organelles like mitochondria lies the total genetic material of the cell known as GENOME.
- The genome contains several functional sequence of bases known as GENE.
- A gene is made of triplets of nucleotides (codons)
Its clear that posterior chest stays outside of lungs hence the lungs muscles are involved.
- There are different sounds occur in our body
- When we tap on lunds tissue low pitched, hollow sounds are heard .
- When we tap on bones flat or extremely dull sounds areheard .
- When we tap over heart dull or thudlike sounds are normally heard
Answer:
B)
Explanation:
Based on the information provided within the question it can be said that one possible main explanation is that a female zebra finch that chooses a mate that resembles her father is more likely to reproduce successfully.
This is due to the fact that they have seen this ornament as a symbol of the male becoming a father thus being more likely to reproduce successfully.
Answer: D
Explanation: the axial filament is madeup of hundreds of fimbrils. It is an organ of locomotion in organisms. It is located between the cell membrane and the outer membrane thereby giving the organism the ability to make a twisting motion. Example of organism that possess axial filaments is the spirochetes
