| A | B |
|---|
| twenty | the number of amino acids |
| millions | the number of different proteins |
| protein synthesis | putting together of proteins |
| Proteins | long chains of amino acids |
| base pairing | joining of bases by weak H bonds |
| ribosomes | site of protein synthesis |
| nucleus | where the chromosomes are located |
| codon | a code found on RNA |
| DNA | Chromosomes are made of this substance |
| Ribose present | RNA |
| deoxyibose present | DNA |
| Phosphate present | Both |
| Adenine Present | Both |
| Thymine present | DNA |
| Uracil present | RNA |
| Guanine present | Both |
| Cytosine present | Both |
| Double strand | DNA |
| single strand | RNA |
| Remains in nucleus | DNA |
| Moves out of the nucleus | RNA |
| a near copy | RNA |
| cytosine | guanine |
| adenine | thymine |
| uracil | adenine |
| The point where 2 sister chromatids are attached to each other is the | centromere |
| movement of chromatids to poles | anaphase |
| formation of nuclear envelop | telophase |
| chromosomes line up in center of mitotic spindle | metaphase |
| In contrast to oogenesis , in spermatogenesis | four equal sized haploid cells are produced |
| separation of sister chromatids | occurs in meiosis but not mitosis |
| the amount of DNA is a haploid cell can be represented symbolically as C. The amount of DNA in a cell in Prophase I is..... | 4C |
| Growth would be impossible if cels did not | divide |
| If an organism reproduces asexually, the offspring looks | exactly the same as the parents |
| four new cells formed from each original cell | meiosis |
| part of spermatogenesis | meiosis |
| two new cells formed from each original cell | mitosis |
| new skin cells are formed | mitosis |
| growth of the organism | mitosis |
| part oogenesis | meiosis |
| haploid cells formed | meiosis |
| diploid cells formed | mitosis |
| s resting cell | interphase |
| cell begins to pinch in half | telophase |
| nuclear membrane disappears | prophase |
| chromosomes move to opposite ends of the cell | anaphase |
| chromosomes line up in the middle of the cell | metaphase |
| formed by meiosis | both |
| formed in the male | sperm |
| formed in the female | egg |
| called sex cells | both |
| needed for fertilization | both |
| four formed from original cells | sperm |
| has a tail | sprem |
| larger of the two | egg |
| contains more cytoplasm | egg |
| human kind has 23 chromosomes | both |
| one formed that lives because of unequal division of the cytoplasm | egg |
| the diploid number of ascar is | 4 |
| diploid number of chromosomes | number of chromosomes in an organism |
| eukaryotic cell | has membrane bound cells |
| mitosis | the entire organism |
| prokaryotic | no membrane just chromatic |
| asexual reproduction | 1 cell becomes 2 |
| sexual reproduction | one cell |
| interphase | time between cell divisions |
| cytokinesis | 2 daughter cells form |
| meiosis | cell divisions that takes place only in the reproductive organs |
| gametogenesis | which is the formation of egg and sperm |
| testes | have tupes- simiferous tubulas |
| primary spermatcyte | divided by meiosis |
| ovaries | filled with cells |
| genetics | the study of heredity |
| molecular genetics | the study ok the chemical basis heredity |
| incomplete dominance | the heterozgoto exhibits a value intermediate to the 2 homozygottes |
| codominance | neither allel is dominant |
| sex-linked | genes located on the the X or Y chromosomes |
| sex- influenced | shows a different pattern of expression in each sex (located on autosomes |
| complete dominance | the heterzygote exhibits a phontype identical to the dominant allele |
| allele | gene |
