An unspecialized cell that can give rise to one or more different types of specialized cells, such as blood cells and nerve cells. Stem cells are present in embryos and in various tissues of adult organisms
An accurate summary of meiosis is D. A CELL DIVIDES INTO GAMETES.
Meiosis is a special type of cell division wherein only have of the DNA copies are made. Meiosis divides cells two times. First cell division is Meiosis I and second cell division is Meiosis II.
In Meiosis I, homologous chromosome pairs are segregated into two new daughter cells. In Meiosis II, the two new daughter cells produced in Meiosis I are again divided producing four daughter cells.
These four daughter cells become gametes when they mature. Some types of gametes are sperm, ova, pollen, or spores. They contribute to sexual production when facilitated together with fertilization.
<span>Every sperm and ovum has 23 chromosomes. When they fertilize the total chromosomes become 46. After fertilization zygote or egg cell is formed. </span>
Complete question:
In guinea pigs, the allele for short hair is dominant. All the guinea pigs are born short-haired. If a second cross is made using these offspring and results are 3⁄4 short-haired while 1⁄4 are long-haired can you now determine the exact genotypes of the parents and if so what are they?
Answer:
The exact genotype of both the F2 parents is Ss, heterozygous for the trait hair length.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
