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Life Science Ch. 4

Cell Reproduction Review Activity

QuestionAnswer
Formation of two nuclei with identical chromosomes Mitosis
Reproduction in which a new organism is produced when sex cells from two parents combine Sexual Reproduction
Nuclear Division that forms sex cells Meiosis
Cell that forms in fertilization Zygote
Controls cell activity with coded instructions DNA
The joining of an egg and a sperm Fertilization
Segment of DNA controlling production of one protein Gene
A nucleic acid which carries the code for making proteins from the nucleus to the ribosomes RNA
Any permanent change in genetic material of a cell Mutation
Most of the life of any cell is spent in a period of cell growth and development called Interphase
Only ___________ have spindle fibers Animal
Only plants have __________ cell walls Rigid
Only plants form _______________ Cell Plates
Each human skin cell has _______ pairs of chromosomes 23
________ are made by a different process than skin cells Sex Cells
In sexual reproduction, a new organism is produced when sex cells of _______ parents combine Two
Yeast reproduces by ________ Budding
In ________, a new organism grows from just a part of the parent organism Regeneration
Human gametes have _______ individual chromosomes 23
The number of chromosomes in a gamete of an organism it its ________ chromosome Haploid
Meiosis consists of __________ division(s) of the nucleus Two
At the end of meiosis, ________ cells are produced Four
In DNA, adenine always pairs with __________ Thymine
Proteins are made of units of __________ linked together in a specific order Amino Acids
The code for making proteins is carried to the ribosomes by _________ RNA
Reproduction can be sexual or __________ Asexual
Asexual reproduction only requires _______ parents 1
Sexual reproduction requires ________ parents 2
Three types of asexual reproduction are budding, ___________, and regeneration Fission
Fission is basically the process of __________ Mitosis
Hair color and freckles are both examples of __________ Traits
Any permanent change in the genetic material of a cell is called a(n) _________ Mutation
__________ controls proteins that build cells and tissues Genes
The structural difference between a strand of RNA and a strand of DNA is the fact that DNA is ________________ Double-Stranded
Shape of a DNA molecule is like a ___________ Ladder
DNA strands are held together by ____________ Nitrogen Bases
Bacteria reproduce by a form of asexual reproduction called __________ Fission
In plant cells, a structure called a ________ forms in between two new nuclei Cell Plate
Budding is a form of ______________ Asexual Reproduction
Cell phase in which centromeres divide ______ Anaphase
Cell phase in which centrioles move to opposite ends of the cell _____ Prophase
Cell phase in which Nuclear membrane forms around each mass of chromosomes _________ Telophase
Cell phase in which A copy of each chromosome is made _________ Interphase
Cell phase in which centromeres attach to the spindle fibers _______ Metaphase
Cell phase in which double-stranded chromosomes line up in the center of the cell __________ Metaphase
In animal cells, once the nucleus has divided, the ___________ pinches in to form two new cells Cytoplasm
Cell division resulting in two new nuclei having the same # of chromosomes as he original cells is called __________ Mitosis
Eggs or sperm are called __________ cells Sex
Plant cells have no ___________ Centrioles
Plant and animals cells have ___________ during Mitosis Spindle Fibers
Budding is a form of ____________ reproduction Asexual
A whole new organism can grow from just a part of the parent in animals that have the ability to _____________ Regenerate
Units that make up proteins... Amino Acids
Used to demonstrate that DNA molecule is a helix... X-Rays
Where messenger RNA attaches during protein construction .... Ribosomes
Pairs with cytosine .... Guanine
Sugar molecules in DNA... Deoxyribose
The part of DNA that directs the making of a specific protein... Gene
Discovered DNA was a strand of molecules in a spiral form... Franklin
Used to build cells and tissues... Protein
Made a working model of the DNA molecule... Watson and Crick
Contains Uracil... RNA
Created by: SavannahElkins
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