How many chromosomes are present?
Diploid cells have one set of chromosomes that come from the mom's _?_ and the other set comes from the dad's _?_
-egg (ovum) -sperm
Identify the two types of gametes
-egg (ovum) -sperm
How many chromosomes are in human gametes?
23
What is the n number of chromosomes for monoploid (haploid) human cells?
23
How many chromosomes are found in human cells that are diploid?
46
How many chromosomes are in human somatic (body) cells?
46
Why is chromosome number in each of the animal cells an even number?
Because chromosomes come in pairs. One chromosome in a pair comes from from the mother and one from the father --> 2n
Why does a chromosome have two sister chromatids
Because the DNA is replicated during Interphase
Is a zygote a diploid or a monoploid cell
Diploid
Monoploid (same as haploid)
Having n number of chromosomes (one of each homologous pair)
Why is it important that gamete cells have only one set of chromosomes
To maintain proper chromosomes number when the egg and sperm fuse in fertilization
In the human body, body cells are __
diploid (2n)
In the human body, bone cells are __
diploid (2n)
In the human body, liver cells are _?_
diploid (2n)
In the human body, muscle cells are __
diploid (2n)
In the human body, nervous system cells are _?_
diploid (2n)
In the human body, skin cells are __
diploid (2n)
In the human body, somatic cells are __
diploid (2n)
What process involves fusing games to create a zygote?
fertilization
Diploid
having 2n number of chromosomes (having both homologous chromosomes present)
Two chromosomes that are the same size, same shape and that code fro the same traits are called _?_ chromosomes
homologous
In the human body, egg cells are _?_
monoploid (1n)
In the human body, gamete cells are _?_
monoploid (1n)
In the human body, ova cells are __
monoploid (1n)
In the human body, sex cells are __
monoploid (1n)
In the human body, sperm cells are __
monoploid (1n)