0
What else can I help you with?
What is the role of meiosis to sexual reproduction?
Meiosis produces daughter cells with half the genetic material of normal cells. This means that when the gametes from each parent meet, the resulting offspring will once again have the correct number of chromosomes. Meiosis allows half of the chromosomes come from each parent - which is vital for sexual reproduction.
Where do you get chromosomes from?
Chromosomes are found within the nucleus of cells. They contain genetic material in the form of DNA and are passed down from parent to offspring during reproduction. Each species has a specific number and arrangement of chromosomes that carries the genetic information necessary for development and functioning.
Why should the gametes be haploid when the new organism will be diploid?
Gametes need to be haploid because when they fertilize and combine during sexual reproduction, they restore the full complement of chromosomes (diploid) in the zygote. This ensures that the offspring will have the correct number of chromosomes for proper development.
How many chromosomes come from each parent?
Each parent contributes half of their chromosomes to their offspring. Humans have 23 pairs of chromosomes, with one member of each pair coming from the mother and the other from the father.
Would a skin cell mutation on your hand affect your offspring?
No, a mutation in a skin cell on your hand would not affect your offspring because mutations in somatic cells (like skin cells) are not passed on to the next generation. Offspring inherit genetic information from germ cells (sperm and egg cells) which are not affected by mutations in somatic cells.
What happens to the number of chromosomes in a sex cell?
They're in half. Once the two cells come together the full amount of chromosomes are there.
What is the pairing of homologous chromosomes called?
The pairing of homologous chromosomes is called synapsis. It occurs during prophase I of meiosis when homologous chromosomes come together and exchange genetic material through a process called crossing over.
Why is it important that sex cells have exactly the number of chromosomes as the body cells?
The DO NOT "have exactly the number of chromosomes as the body cells", they have 1/2 that number. This is so that when two sex cells come together to form an embryo, the cells of that embryo have exactly the same number of chromosomes as the body cells of the two parents and not twice that number.
Why must a gamete have only one half the number of chromosomes in body cells?
A gamete will only have one half of the number of chromosomes found in body cells because two gametes have to come together. This means that the two gametes have to have only half of the chromosomes.
Do males start out female?
No. Biological sex is coded in the sex chromosomes of the sperm and egg cells that come together to make a person. From the moment of conception, sex is determined by these chromosomes.
How many chromosomes does a white blood cell have?
It has 46 chromosomes because it is a body cell. All body cells have 46 chromosomes except our sex cells, which have 23. Body cells are refered to as 2n, or diploid, while sex cells are just n, or haploid. When sex cells combine they form another regular body cell, because the chromosomes come together.
What is the role of meiosis to sexual reproduction?
Meiosis produces daughter cells with half the genetic material of normal cells. This means that when the gametes from each parent meet, the resulting offspring will once again have the correct number of chromosomes. Meiosis allows half of the chromosomes come from each parent - which is vital for sexual reproduction.
If there are 46 chromosomes in a human body where does half come from?
Half of the chromosomes in a human body come from the egg cell provided by the mother, which contains 23 chromosomes. The other half comes from the sperm cell provided by the father, which also contains 23 chromosomes. When these two cells combine during fertilization, they create a zygote with a total of 46 chromosomes.
Where do you get chromosomes from?
Chromosomes are found within the nucleus of cells. They contain genetic material in the form of DNA and are passed down from parent to offspring during reproduction. Each species has a specific number and arrangement of chromosomes that carries the genetic information necessary for development and functioning.
How do the numbers of chromosomes in cells compare with the number of chromosomes in sex cells?
Cells typically have two sets of chromosomes, one inherited from each parent, while sex cells (sperm and egg cells) only have one set of chromosomes. This means that cells have a diploid number of chromosomes, while sex cells have a haploid number of chromosomes.
Why should the gametes be haploid when the new organism will be diploid?
Gametes need to be haploid because when they fertilize and combine during sexual reproduction, they restore the full complement of chromosomes (diploid) in the zygote. This ensures that the offspring will have the correct number of chromosomes for proper development.
Why must gamete have only half the number of chromosomes found in a body cell?
A gamete will only have one half of the number of chromosomes found in body cells because two gametes have to come together. This means that the two gametes have to have only half of the chromosomes.
