<span>The statement "Abnormal cells crowd out cells and steal nutrients" is true. Abnormal cells are the cells that are not considered as normal and usual in the human body. Cancer cells are example for abnormal cells. These </span><span><span>ignore normal laws of tissue boundaries and local territories. They cause problems to cells and organs crowd out other organs, take up space and prevent other critical functions from happening.</span> </span>
Answer:
Closing the stomata, or stoma, on the underside of the leaves in order to reduce water loss through the stoma during transpiration.
Answer:
Explanation:
The mutation was caused as a result of deletion of one letter of the codon A from tyrosine leading a shift in the reading frame.
Normal is
Normal - Met - Tyr -His- Glu- Val
Aug- Uac- Cac - Gaa -Gug
When a is removed from Tyrosine codon we have a shift in the reading frame to form a mutant with a new codon and protein.
Mutant - Met- Phe - Thr - Lys -Cys
Aug- Ucc- Acg - Aag -Ugu
Mutation is a sudden change in the genie of an organism that can be heritage by offspring from their parent.
Answer: Meiosis produces the sex cells, that is the gametes (sperm cells and eggs) that unite to form a zygote. Meiosis ensures that the gametes have have haploid chromosomes so that the resulting zygote from their fusion will have diploid chromosomes.
Explanation: Meiosis is a type of cell division in which a cell divides twice to produce four daughter cells each with the half the number of chromosomes as the parent cell. Without meiosis new gametes are not produced. Meiosis ensures that the chromosomes are evenly distributed among the daughter cells and that each daughter cell contains 23 chromosomes. A sperm cell with 23 chromosomes fuses with an egg with 23 chromosomes to form a zygote with 46 chromosomes. If meiosis does not occur, gametes with haploid chromosomes will not be produced, and if the gametes have diploid chromosomes because meiosis does not occur, sexual reproduction will be a disaster because when two diploid gametes fuse the resulting zygote with be abnormal.
