NCEA Level 1 genetics external
Help!
|
|
||||
|---|---|---|---|---|---|
| Haploid | Half a set of chromosomes from only one parent (23 for humans)
🗑
|
||||
| Diploid | A full set of chromosomes, half from the mother and half from the father (46 total, 23 from each parent)
🗑
|
||||
| DNA Replication | The copying of genetic information that occurs before a cell divides to ensure that there are enough chromosomes in each daughter cell
🗑
|
||||
| semi-conservative | A strand of each double helix is a parent and the other is a daughter
🗑
|
||||
| Meiosis | Cell division that produces sex cells (gametes)
🗑
|
||||
| Mitosis | A type of cell division that creates daughter cells genetically identical to each other and the parent
🗑
|
||||
| Trait | A characteristic that determines someone's appearance or personality
🗑
|
||||
| Gene | A segment of DNA that codes for a particular trait
🗑
|
||||
| Allele | A particular version of a gene
🗑
|
||||
| complementary base pairing | The rule that determines which bases can connect; A-T, C-G
🗑
|
||||
| Homologous pairs | Pairs of chromosomes, one from each parent, that contain the same genes in the same loci. The alleles can be different
🗑
|
||||
| Natural Selection | The increased survival of a organism with a particular trait due to changes in the environment and selection pressures
🗑
|
||||
| Heterozygous | A genotype with two different alleles e.g Nn
🗑
|
||||
| Homozygous | A genotype with two of the same alleles e.g NN
🗑
|
||||
| Recessive | An allele that can only be expressed in the phenotype if there is no dominant allele to mask it
🗑
|
||||
| Dominant | An allele that is expressed in the phenotype and masks any recessive allele.
🗑
|
||||
| Genotype | The two alleles (one from each parent) that determine the phenotype of an organism
🗑
|
||||
| Phenotype | The way alleles are expressed/The trait expressed
🗑
|
||||
| Selection Pressures | Pressures such as lack of food that cause natural selection
🗑
|
||||
| Variation | The difference in traits within a population
🗑
|
||||
| Mutation | A permanent change in the sequence of DNA due to addition, deletion or substitution. They can be harmful, beneficial or neutral.
🗑
|
||||
| Nucleuotide | the sequence that makes up DNA; a sugar, phosphate and a base
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
AnnabelleFenn
Popular Genetics sets