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7th LIFE SCIENCE

CHAP 5 TEST MITOSIS, MEIOSIS, DNA, AND PROTEIN SYN

QuestionAnswer
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