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7th LIFE SCIENCE
CHAP 5 TEST MITOSIS, MEIOSIS, DNA, AND PROTEIN SYN
| Question | Answer |
|---|---|
| Genes | sections of DNA (chromosomes) |
| Diploid | condition in which a cell has a full set of homologous chromosomes; 2 of each one |
| Sexual reproduction. | type of reproduction in which offspring receive genetic information from both parents |
| S Phase | that period of Interphase in which DNA makes a copy of itself during replication |
| The fusion of gametes is ____________reproduction. | sexual reproduction |
| Zygote | the fertilized egg formed by the fusion of 2 gametes during sexual reproduction |
| Cells divide the nucleus during ____________? | mitosis |
| Cells divide the cytoplasm forming 2 new daughter cells during ___________________? | cytokinesis |
| Sister chromatid | Identical copies of a doubled chromosome held together by a centromere. |
| Cell reproduction in which a mother cell produces 2 identical daughter cells is | mitosis |
| Cell reproduction in which a mother cell produces daughter cells with 1/2 the number of chromosomes is | meiosis |
| A type of reproduction thats involves only 1 parental DNA source is | asexual |
| Name the 3 types of asexual reproduction we studied in class. | budding, regeneration, binary fission |
| Sexual or asexual; which type of reproduction produces offspring identical to the parent? | asexual |
| The phase in which the nuclear membrane disappears. | prophase |
| the phase in which the new nuclear membrane forms. | telophase |
| The phase in which the chromosomes are lined up the center of the spindle | metaphase |
| A cell with only one of each type of chromosome and only 1/2 of the total number of chromosomes. | haploid |
| Which cell division produces gametes? | meiosis |
| 3 functions for mitosis | producing new cells for growth, producing new cells to repair damaged tissue, producing new cells as a method of asexual reproduction |
| Sister chromatids separated in anaphase of a dividing cell are now called | daughter chromosomes |
| The process of growing missing body parts is | regeneration |
| The egg and sperm combine in the process known as | fertilization |
| Spores are produced by which cell type of cell division? | meiosis |
| Spores can survive unfavorable conditions because they have | a thick protein coat |
| How many nitrogen bases would be needed for an amino acid chain of 8? | 24 |
| How many chromosomes in a human skin cell? | 46 |
| What is the diploid number for humans? | 46 |
| How many chromosomes in a human gamete? | 23 |
| What is the haploid number for humans? | 23 |
| What carries the genetic code from DNA to the ribosome for protein building? | mRNA |
| 3 parts of a nucleotide | a phosphate group, a sugar, a nitrogen base |
| the 4 bases of DNA | adenine, thymine, cytosine, guanine |
| the 4 bases of RNA | adenine, uracil, cytosine, guanine |
| The bonding rules for DNA | A - T & C - G |
| The bonding rules for RNA | A - U & C - G |
| The phase of mitosis in which chromosomes become visible | Prophase |
| Haploid | condition of cell in which there is 1/2 of the homologous chromosomes; 1 of each pair |
| Protein synthesis | the process of assembling amino acids into proteins |
| The organelle that assembles proteins. | ribosome |
Created by:
biobob
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