diploid
Yes. Chromosomes come in pairs and the child has them from both parents. Sometimes, one pair can have an extra third one. This conditions is possibly called Down Disease. Children are slower in development and have visible facial disorders. Their faces look different. You can try google that.
Hello, Anaphase 1 and 2 are both part of the process of meiosis, the division of sex cells, and they are both phases where chromosomes are being pulled apart by the centrioles. However, in anaphase one the chromosomes are lined up in homologous pairs, meaning that there are two chromosomes side by side, so when the centrioles pull they are separating two unconnected chromosomes. In anaphase two the chromosomes are lined up in single file. So the centrioles are pulling one chromosome apart. It eventually breaks the link at the centromere of the chromosome and results in two sister chromatids. Hope this is clear enough to understand!
DNA is stored in the nucleus and sent to other cells
It is hard to say which step happens first in the process of human fertilization. The process leading up to it is usually slow. A man and a woman smile at each other. That is actually the first step. They get to know each other. The process goes on and on. A man grabs hold of a woman. Neither one has clothes on. He puts his penis in her vagina. Both push back and forth. Eventually, with them breathing hard, he ejaculates semen. Sperm work their way out from her vagina, through her uterus into her fallopian tubes. Meanwhile, her ovaries prepare an egg. It has a full set of chromosomes. It loses half of them. Unlike ordinarily cell division, only the nucleus divides. The egg cell ejects the nucleus called a polar body. The ovary ejects the egg. little cilia move the egg to the fallopian tubes. There it meets the sperm. The sperm breaks through the surface of the egg. The surface becomes hard so no more sperm will break through. The sperm swims through the egg until it reaches the nucleus. There it deposits its chromosomes. The chromosomes in the nucleus break apart and then reassemble. At that point the chromosomes of the new individual exist in the form the new person will have them the rest of his or her life. Which step happened first?
They are visible during mitosis. During Prophase the DNA is compacted into Chromosomes while the intermediate filaments that make up the Nuclear Envelope are phosphorylated and it falls apart. Leaving behind the chromosomes, very easy to see throughout prophase, metaphase, anaphase and telophase (Until the nucleus reforms in both daughter cells and the chromosomes de-condense). Chromosomes are easy to see by definition, their name in greek literally means colored bodies, this mostly because the guy that saw them first had no idea what they were.
A cell containing both sets of homologous chromosomes is called a diploid. One is usually taken from the mother and one from the father.
Homologous chromosomes are pairs of each other. They are chromosomes that are identical to each other except for a few variations. Everybody has one from their mom and dad. Everybody has 46 chromosomes, but in reality it is less confusing to say "we have 23 pairs of chromosomes."
The question is not proper. Please define more. I assume you meant whether the genetic information is transferred between homologous chromosomes. Yeah it does. When the two homologous chromosomes pair up to form bivalents, crossing over occurs between them.
Baker's yeast or cerevisiae is an organism with 32 chromosomes that can perform asexual or sexual reproduction and exist as both a diploid and haploid cell.
a diploid cell
The 23rd pair of chromosomes are the sex chromosomes. In female humans, both sex chromosomes are homologous, and characterized as XX. In male humans, one sex chromosome is an X chromosome and the other is a much smaller, nonhomologous Y chromosome, and is characterized as XY.
Homologous chromosomes are two sister chomatids stuck together with cohesins forming a tetrad. They have the same genes but not necissarily the same alleles, so they could carry hair color, one with brown the other with blonde. So, homologous chromosomes share the same gene.
A pair of chromosomes is called a "chromosome pair."Generally, the two chromosomes in a pair are "homologous chromosomes."An individual form of a gene is called an "allele." (For example: if someone has genotype "Aa", they have two different alleles, "A" and "a")
inclusive : pvq : one or both have to be true exclusive : pV ( with a line under it but i dont know how to do that on my aptop) q :ony one coud be true
Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material. Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material.
homologous chromosomes
no, DNA Cytoplasm and Nucleolus are the only things found in the nucleus