lessons 1-3 science
sex cells have blank chromosomes
23
you have blank pairs of homologous chromosomes
23
in your body so you have blank chromosomes
46
how many chromosomes in humans should be in each diploid cell after mitosis
46 chromosomes or 23 pairs
genetic material or blank is found in all living organisms
DNA
chromosomes are of blank and contain your blank
DNA and genes
what is a chromosome made of
DNA and proteins
in mitosis the new cell has an blank of genetic material of the original cell
Full set
what is meiosis
a type of cell division that makes sex cells
what is an example of organisms that reproduce like eukaryotic organisms (single celled)
amoebas
since the offspring is identical to the parent the reproduction is called
asexual
compare and contrast asexual and sexual reproduction
asexual: ex.; sea-stars regenerating, bacteria uses binary fission to split in 2 (prokaryotes), yeast uses budding which is when a child is and outgrowth on the parent which may fall of and be individual or stay like a coral. amoeba; not a he or shell, spore is a specialized cell that survives in harsh conditions: differences, faster more efficient, it can use mitosis, there's no diversity, not sexual, has one parent, offsprings are clones,;sexual; -2parents, offspring not identical to eachother and parent, variety, fertilization occurs when sperm and egg combine to form a zygote, it is a slower process and needs more energy, sex cells are called gametes
is DNA copied before or after cell division
before
in mitosis the cells that are created are
body cells that are identical to the parent
meiosis start out looking like mitosis DNA is blank and two blank cells are produced. However meiosis has two blank and results in blank cells each with blank the number of chromosomes.
copied, identical, divisions, 4,half
The rest of us are divided into two identical cells in blank
cytokinesis
what are differences and similarities between mitosis and Meiosis
difference; in mitosis there are diploid chromosomes which is 46 chromosomes in humans but in meiosis there are haploid chromosomes or 23 chromosomes in humans, the number of cells in mitosis is two and the number of cells and meiosis is four, in mitosis it divides wines and and me oh sis it divides twice, mitosis is used to replace body cells and sometimes used to reproduce but in meiosis it creates sex cells; similarities are that they both copy once
A body cel that has two pairs or sets of chromosomes is called
diploid
multicellular organisms body cells blank by mitosis
divide
females have Frank chromosomes and mail have blank and blank chromosomes
females have 2X chromosomes and males have one X and one y chromosome
another word for sex cells is blank which is blank
gametes which is an egg or sperm cells
DNA directs and organisms blank blank and blank
growth development and activities
multicellular organisms use mitosis for blank blank blank and blank
growth development so repair and reproduction
a cell with blank of the chromosomes is called haploid
half
sex cells have blank the number of chromosomes found in a body cell.
half
when chromosomes are paired up we call them blank chromosomes
homologous
at the end of mitosis there are two nuclei with blank genetic material
identical
The cell cycle is ordered steps to go through and repeat the three steps are
interphase mitosis and cytokinesis
describe what would occur if cells were in mitosis more than they were in interphase
it would cause an uncontrolled growth which causes cancer
which would have more serious outcomes if there was an error- meiosis it mitosis
meiosis - could cause birth defects
describe how mitosis is important for your body
mitosis helps your body Gralin developed repair and sometimes reproduce
23 chromosomes came from your blank and the other 23 chromosomes came from your blank
mom and dad
what is interphase
most the time the sellers in interface it is growling moving and interacting with the environment genetic material is copied and ready for the next stage
what are mitosis is four main stages
prophase metaphase anaphase and telophase
cell division also makes new cells to
replace damaged or old cells
Single cell organisms use mitosis to blank by cell division
reproduce
in eukaryotic or single celled organisms mitosis is used to
reproduce
in sexual reproduction blank cells join together
sex
what types of cells do not undergo mitosis
sex cells
in humans the blank chromosomes determine blank characteristics
sex, sexual
most pairs of chromosomes are the same blank and blank with one important exception
size and shape
DNI determines the blank an individual inherits and needs to live
traits
mitosis produces
two identical body cells
the result of sexual reproduction is called a
zygote