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Definitions
Biology definitions term 1
| Question | Answer |
|---|---|
| Gene | A gene is the basic physical and functional unit of heredity. |
| Chromosome | Chromosomes are thread like structures located in the nucleus. They carry genetic infornmation |
| Allele | Allele is alternate form of a gene |
| Locus | A locus is a specific fixed position on a chromosome where a gene or genetic marker is located. |
| Karyotype | Karyotype is basically a photo of chromosome cells |
| DNA | DNA is the molecule inside a cell that contains all the information about a person, animal or plant. |
| Nucleus | The nucleus is the brain of a cell and contains all the chromosomes. |
| Diploid | The diploid contains two complete sets of chromosomes, one from each parent. |
| Haploid | single set of unpaired chromosomes. |
| Sex Chromosome | A sex chromosome is a chromosome focused on determining the sex of an organism, Typically one of two kinds. |
| Homologous chromosome | Homologous chromosomes are a set of chromosomes from each parent that pair up with each other during fertilization. |
| Gametes | A gamete is a male or female germ cell which is able to unite with the other sex to make a diploid cell |
| Ribosome | Ribosomes are micro machines found in cells that make biological protein synthesis. |
| Amino Acid | Molecules that combine to form protein |
| RNA | RNA creates protein via translations. |
| Codon | Is a sequence of three nucleotides in a DNA or a RNA molecule, this is coding for a specific amino acid. |
| A chromatid is attached to the spindle fibre by the | centromere |
| The uncontrolled division of cells that results in malignant growth | cancer |
| The phase of mitosis in which the sister chromatids separate from each other | anaphase |
| The chromosomes line up across the middle of the cell | Metaphase |
| How many times does the cell divide in meiosis? | 2 times |
| Is the final result of meiosis diploid or haploid? | haploid |
| The cells produced by the process of meiosis are called: | gametes |
| What is it called when gametes meet? | fertilization |
| The end of meiosis results in _______________to each other. | 4 cells that arent identical |
| If a liver cell has 10 chromosomes, how many does a sperm cell have from the same species? | 5 |
| In mitosis, the two resulting cells are | identical to the starting cell and identical to each other. |
| Which of the following is the best definition for MEIOSIS? | a two-step process that reduces the number of chromosomes in half such that there is only one copy of all the chromosomes |
| In which stage of MEIOSIS does crossing over occur? | Prophase I |
| Homozygous | 2 identical alleles |
| Homozygous dominant | HH |
| Homozygous recessive | hh |
| Heterozygous | Hh, 2 different alleles |
| XX | Female |
| 38 chromosomes in a cat. How many gametes | 19 gametes |
| Haploid number of human chromosomes | 23 |
| Diploid number of human chromosomes | 46 |
| Autosome | chromosomes that determine traits other than sex |
| If a diploid cell of a beetle has 10 chromosomes, how many chromosomes will be in one stomach cell from this beetle? | 10 |
| How many autosomes in human sperm | 22 |
| If a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain | 12 |
| How many chromosomes do we get from each parent? | 23 |
| The phase of mitosis in which the sister chromatids separate from each other | Anaphase |
| How many times does the cell divide in meiosis? | 2 |
| Mitosis is diploid or haploid | diploid |
| The cells produced by the process of meiosis are called | gametes |
| Is mitosis sexual or asexual reproduction | Asexual |
| What is it called when gametes meet? | Fertilization |
| The end of meiosis results in ? to each other. | 4 cells that aren't indentical |
| If a liver cell has 10 chromosomes, how many does a sperm cell have from the same species? | 5, half. |
| In mitosis, the two resulting cells are | identical to the starting cell and identical to each other, 2 daughter cells. |
| Meiosis results in the production of | 4 haploid cells |
| Framshift mutation | Insertion or deletion |