Answer:
If its right Braliantes please
Explanation:
Genes come in pairs (that is, are present in two copies in an organism).
Genes come in pairs (that is, are present in two copies in an organism).Genes come in different versions, now called alleles.
Answer:
Sexual reproduction occurs from the fusion of male sperm cell with female egg cells. Due to this fusion, fertile zygote is formed which turns into a new organism.
Explanation:
The sperm cell of male and egg cell of female are haploid in nature i. e. half number of chromosome. When two haploid cells combine together, it forms diploid cell i. e. double number of chromosomes. The organism which is formed from sexual reproduction have diploid cell.
<span>All cells have the same DNA. They are different because different genes have been locked up and only some of them are expressed. The process began in the embryonic stage, when stem cells are turned into different types of cells by turning off some of the genes. Scientists have been looking for ways to reverse the process, meaning turning specialized cells back into stem cells. Some success has been reported using different methods. The latest one uses a weak acid to stress the cells.</span>
