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One purpose of meiosis is to keep the number of these constant in generation after generation of zygotes?
chromosomes
What is the term for two chromosomes that have the same length?
Homologous, but keep in mind that only specific pairs of chromosomes numbered on a karyotype (e.g. 1, 2, 3) can be homologous.
Where are chromosomes found in the nucelus?
Chromosomes are made up of DNA in living organisms. In humans, the DNA is located in the nucleus of every cell in your body. The chromosomes are the map to the human body and contains instructions for each cell to follow, building proteins to keep the body functioning,
For what reasons might a cell use meiosis?
All human cells have 46 chromosomes, 23 pairs. In sexual reproduction, if an egg and a sperm each with 46 chromosomes joined then the zygote would have 92 chromosomes. To keep this from happening, cells undergo meiosis. In meiosis the cells replicate the chromosomes and divide then divide again so they end up with only 23 chromosomes. Cells with half the number of chromosomes are called gametes.
What do chromosomes supply an oganism with?
Chromosomes supply an organism with genetic information in the form of DNA. This genetic information contains instructions for the development, growth, and functioning of the organism. Chromosomes also help in the inheritance of traits from one generation to the next.
What happen to chromosomes as the zygote continues to divide?
As the zygote continues to divide through the process of mitosis, the chromosomes replicate and are evenly distributed to each daughter cell. This ensures that each new cell receives a complete set of chromosomes and genetic information. Eventually, this leads to the formation of an embryo with multiple cells containing identical copies of the original chromosomes.
What discovery in the 1900 supported Mendel's ideas?
Chromosomes
Both meiosis and fertilization are essential to maintain chromosome number constant .why?
Total number of chromosomes remain same in same species of organism through meiosis process. In meiosis process the number of chromosomes are reduced to half as a result in gametes only one set of chromosomes will be present. In this process chromosomes are same.....
All chromosomes except the X and Y sex chromosomes are called?
homologous chromosomes and autosomal chromosomes
How many chromosomes do lobsters have?
A lobster has 100 chromosomes. Humans have 46 chromosomes, the same as a lizard. A dog has 78 chromosomes, and a fly has 12 chromosomes.
Are sex chromosomes called homozygous chromosomes?
No, sex chromosomes are not referred to as homozygous chromosomes. Homozygous chromosomes have identical alleles at a specific gene locus, while sex chromosomes determine an individual's biological sex. In humans, sex chromosomes include X and Y chromosomes.
The stringy structures in the cell nucleus that contain DNA are?
chromosomes
