punnet squares
how many boxes are in the punnet square
4
what gender does the square represent
male
what is the first stage of meiosis
prophase
How many cells does mitosis end with?
(2n)
define genetics
the study of how different traits are passed down from parents to offspring
true or false
a capital letter is dominant
true
true or false
Pedigrees are normally used to represent simple dominant and recessive traits.
true
define meiosis
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
define mitosis
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
define heredity
the passing down of traits from parents to offspring
true or false
homozygous is dominant
false
is it true that A pedigree chart was used to track the presence or absence of a given trait (phenotype) through two or more generations of a family.
yes
what is the purpose of meiosis
The purpose of meiosis is to reduce the normal diploid cells (2 copies of each chromosome / cell) to haploid cells, called gametes (1 copy of each chromosome per cell). In humans, these special haploid cells resulting from meiosis are eggs (female) or sperm (male).
What happens during mitosis?
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells
define traits
the characteristics that make one individual different from another
is it true that The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
yes
Why is a pedigree important?
A pedigree represents family members and relationships using standardized symbols (see below). As patients relate information to you about their family history, a pedigree can be drawn much quicker than recording the information in writing and allows patterns of disease to emerge as the pedigree is drawn.
How many chromosomes are in meiosis?
46 chromosomes
Where does mitosis occur in the body?
Mitosis occurs in every cell of the body except in germ cells which are produced from meiotic cell division.
define inherited trait
a trait of an organism passed on to its genes
What's the difference between genotype and phenotype?
the difference is that An organism's genotype is the set of genes in its DNA responsible for a particular trait. An organism's phenotype is the physical expression of those genes.
What's the difference between purebred and pedigree?
Different people or organisations have their own definitions of pedigree dogs. ... Some people use the terms pedigree and purebred interchangeably (as we do here) but to others, purebred means the animal's parents are of the same breed, whereas pedigree means its breeding history has been recorded.
How does meiosis occur in humans?
In humans, meiosis is the process by which sperm cells and egg cells are produced.
Does mitosis occur in gametes?
Mitosis occurs in somatic cells
define acquired trait
a trait of an organism learned through experience or from its environment