Table of Contents
- 1 Why are the daughter cells produced by meiosis genetically different when cells produced by mitosis are identical?
- 2 Why do genetically different cells form during meiosis?
- 3 Do all offspring from the same parents inherit the same versions of the available genetic material Why or why not?
- 4 What happens during fertilization that makes the offspring unique from the original cells?
- 5 Why are the parent and daughter cells in mitosis?
- 6 What are the main differences between these two processes and what types of daughter cells produced by each?
- 7 Are there offspring likely to be genetically identical or different?
- 8 Can a clone have the same genetic makeup as the original?
- 9 How are new gene combinations introduced in meiosis?
Why are the daughter cells produced by meiosis genetically different when cells produced by mitosis are identical?
The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
Why do genetically different cells form during meiosis?
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes.
What part of meiosis is the main reason for genetically unique offspring?
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.
Do all offspring from the same parents inherit the same versions of the available genetic material Why or why not?
No, unfortunately during the overlapping during the meiosis phase the offspring from the same parent doesn’t have the same inherit of the same versions of the genetic material.
What happens during fertilization that makes the offspring unique from the original cells?
The process of meiosis produces genetically unique reproductive cells called gametes, which have half the number of chromosomes as the parent cell. Fertilization, the fusion of haploid gametes from two individuals, restores the diploid condition.
What are different versions of the same gene known as?
Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.
Why are the parent and daughter cells in mitosis?
Mitosis is the process a single cell uses to divide into two new identical cells. The original cell is called a parent cell, and the newly formed cells are referred to as daughter cells. This replication process assures that newly created daughter cells will each have the same DNA as the original parent cell.
What are the main differences between these two processes and what types of daughter cells produced by each?
What are the main differences between these two processes, and what types of daughter cells produced by each? Meiosis has two cell divisions and results in four haploid daughter cells with genetic variation, while mitosis has one cell division and results in two identical daughter cells.
Which type of reproduction involves two parents and results in offspring that are not genetically identical to either parent?
Sexual reproduction involves two parents and produces offspring that are genetically unique. During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote.
Are there offspring likely to be genetically identical or different?
Answer Wiki. Offspring that are the result of sexual reproduction tend to be different — except armadillos, which always have identical quadruplets. In humans, identical twins occur in about 3 out of every 1000 births. Offspring that are not the result of sexual reproduction (parthegenesis or simple cell division) do tend to be identical.
Can a clone have the same genetic makeup as the original?
The copied material, which has the same genetic makeup as the original, is referred to as a clone. Researchers have cloned a wide range of biological materials, including genes, cells, tissues and even entire organisms, such as a sheep. Do clones ever occur naturally? Yes.
How are chromosomes divided in mitosis and meiosis?
Both processes involve the division of a diploid cell, or a cell containing two sets of chromosomes (one chromosome donated from each parent). In mitosis, the genetic material (DNA) in a cell is duplicated and divided equally between two cells.
How are new gene combinations introduced in meiosis?
New gene combinations are introduced in a population through the genetic recombination that occurs during meiosis. Thus, unlike the two genetically identical cells produced in mitosis, the meiotic cell cycle produces four cells that are genetically different.