Ch 4 Life Scienc
Terms in this set (39)
Cell division that produces 4 haploid sex cell
The division of the nucleus that produces 2 diploid body cells.
A structure in the cell's nucleus that carries the genetic information
Genetic material of all organisms (double-stranded)
Genetic material that is used to help build proteins (single-stranded)
Formed in the female reproductive organs
The combining of the sperm and egg cells. Two parents have an offspring similar to the parents (example- human, white oak)
One parent cell that divides to form offspring that are identical to he parent. (Example - fission, mitosis, budding)
Sex cells (sperm or egg) that have half the number of chromosomes
Cells that have two similar copies of each chromosome
Formed in the male reproductive organs
Process where sex cells come together and form a zygote
Growth and Development & Cell Division
Two parts of the life cycle of a cell
Prophase, Metaphase, Anaphase, Telophase
The four steps of mitosis
Stage that eukaryotic cells are usually in. This stage happens before mitosis occurs. All hereditary material (chromosomes) doubles by forming copies so each of the two new cells will get a complete copy.
Cell walls and centrioles
Mitosis in plant and animal cells is similar. Animal cells do not have ----------- and plant cells do not have --------------.
Fission, regeneration, and budding
Three different forms of asexual reproduction
A cell formed after sperm and egg join during reproduction
Two divisions (I + PMAT + PMAT)
Meiosis involves ------- divisions of the nucleus
Meiosis guarantees that offspring produced by fertilization have the same number of ------------- as their parent
Large molecule made up of two twisted strands of sugar-phosphate molecules and nitrogen bases
A section of DNA on a chromosome that directs the making of a specific protein
Messenger RNA, Transfer RNA, Ribosomal RNA
Three types of RNA used to make proteins
An error made during the copying of DNA. A permanent change.
Write the complimentary strand of DNA for: TTAGCG
Structure in the nucleus that contains the hereditary material
After Interphase, each duplicated chromosome coils tightly into two thickened, identical strands called ----------
The chromatids pairs are visible and the spindle is beginning to form during this stage of mitosis
Chromatid pairs line up in the middle of cell during this stage of mitosis
The chromatids separate during this stage of mitosis
The cytoplasm begins to separate during this stage of mitosis
Each diploid human cell has 46 chromosomes. How many chromosomes are in the human sex cells?
Cells with no nucleus. Can't undergo mitosis.
Cells with a nucleus. Undergoes mitosis for growth, reproduction, and to replace cells.
If a sex cell has 8 chromosomes, how many chromosomes will there be after fertilization?
Proteins are made up of many ---------- -----------
Mitosis, Meiosis, Sex Cells, Fertilization, Zygote
Arrange the following in the correct order: fertilization, sex cells, meiosis, zygote, mitosis
If a diploid tomato cell has 24 chromosomes, how many chromosomes will be in the tomato's sex cells?
Cell part where proteins are built.
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