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What else can I help you with?
Explain the exchange of chromosome segments between chromatids of homologous or non-homologous chromosomes?
a. crossing over b. independent assortment or c. random fertilization
Cells in a cell culture all have the same genetic material because they are A. vectors B. plasmids C. hybrids D. clones?
Cells in a cell culture of similar genetic material are called clones. vectors can be the carriers of viruses . Plasmids are the extrachromosomal genetic material. Hybrids are the cells produced from the combination of two cells.
A is not a living thing it is made of genetic material inside a protein coat?
Virus
Where do you expect genetic differences between cells to arise from mitosis or from meiosis?
That is a good question. In mitosis, you don't get regular genetic variation but chance mutations can occur. In meiosis with fertilization, you get pairing of DNA from different hosts on a regular basis. I would choose the latter.
Which type of reproduction results in the greatest amount of genetic variation?
That would be sexual reproduction. Sexual reproduction allows for independent assortment and crossing over to occur. This is fancy language for the genetic material gets mixed up a lot. Since the genetic material gets mixed up, variation will result.
What is the difference between recombinant and parental chromatids and how do they arise?
Recombinant chromatids have undergone genetic recombination, resulting in the exchange of genetic material between homologous chromosomes. This process can occur during meiosis. Parental chromatids, on the other hand, have not undergone genetic recombination and contain the original combination of alleles from the parent chromosomes.
How does the process of crossing over between chromatids contribute to genetic diversity during meiosis?
During meiosis, crossing over between chromatids occurs when homologous chromosomes exchange genetic material. This process results in the creation of new combinations of genes, leading to genetic diversity among offspring.
How many chromatids are involved in crossing over of a homologous pair of chromosomes?
Crossing over involves the exchange of genetic material between homologous chromosomes during meiosis. Each homologous pair consists of four chromatids (two from each chromosome), and crossing over occurs between a pair of chromatids from each homologous chromosome. This results in the exchange of genetic material between the chromatids.
Crossing over involves the exchange of genetic information between what?
Non sister chromatids
How does crossing-over affect the alleles on a chromatid?
cancer
What are segments of nonsister chromatids that break and reattach to the other chromatid?
Segments of nonsister chromatids that break and reattach to the other chromatid are known as crossover events. During meiosis, crossover events occur during prophase I and involve the exchange of genetic material between homologous chromosomes, increasing genetic diversity in offspring.
Can you explain the process of crossing over during genetic recombination?
During genetic recombination, crossing over occurs when homologous chromosomes exchange genetic material. This process involves the breaking and rejoining of DNA strands between non-sister chromatids, leading to the exchange of genetic information. This results in genetic diversity among offspring.
When do sister chromatids cross over?
Sister chromatids do not cross over. Cross over occurs between homologous chromosomes during meiosis I, where genetic material is exchanged between non-sister chromatids, leading to genetic variation in the offspring.
During crossing-over what happens to portions of chromatids?
During crossing-over, portions of chromatids exchange genetic material with their homologous chromatids. This results in genetic recombination, where genes are shuffled and new combinations of alleles are created, increasing genetic diversity.
Which part of chromosome exchange during meiosis centromere or telomere?
During meiosis, chromosome exchange occurs at the chiasmata, which are points of crossing over between non-sister chromatids. The exchange involves the exchange of genetic material between homologous chromosomes, not specifically at the centromere or telomere regions.
What is the site of crossing over between two non-sister chromatids?
The site of crossing over between two non-sister chromatids is called the chiasma. It is a physical point where genetic material is exchanged during meiosis. This exchange leads to genetic recombination and increased genetic diversity among offspring.
When corresponding portions of chromatids on two homologous chromosomes change places what has occured?
This is called genetic recombination or crossing over. It results in the exchange of genetic material between homologous chromosomes during meiosis, leading to genetic diversity in offspring.
