M2: PHYSICAL SELF (BIOLOGICAL) Flashcards
the very first thing that we see in an individual
physical appearance
this is a very vital dimension of the self because it is the very first dimension of ourselves that we notice
the physical self
if there are 2 people in this world whom we could blame for our looks, that would be ___________
our parents
our parents’ traits are transferred to us through _________ and that is basic ________ - the study of heredity
natural selection, genetics
transmission of traits from parents to offspring
heredity
the transmission of traits happen during the _______________________
union of the egg cell and sperm cell
the union of a sperm and egg creates a _________
zygote
a zygote carries this many pairs of chromosomes
23
these are threadlike bodies in the nucleus of the cell and storage unit for genes
chromosomes
studies revealed that most human cells contain _____ chromosomes
46
the 22 pairs of chromosomes
autosomes
the 23rd pair of chromosomes which identifies the sex of an individual
sex chromosomes
the sex chromosomes can either be these 2
XX - female, XY - male
this is the unit carrier of heredity
gene
these alone can determine the sex of the fertilized cell
genes
this is the collection of genetic information
genome
this is a nucleus acid that contains the genetic instructions specifying the biological development of all cellular forms of life
DNA (deoxyribonucleic acid)
this is the part (DNA sequence) of genetic makeup of a cell which determines a specific characteristic
genotype
this is the expression of our genotype
phenotype
our looks depend on the _____ that we got from our parents which is manifested through _________
looks, phenotypes
since human cells carry 2 copies of chromosomes, they have __ versions of each gene
2
the 2 versions of each gene are called the _______
alleles
an allele could either be one of these 2:
dominant, recessive
these show their effect even if an individual has only one copy of the alelle
dominant alleles
these only show their effect if the individual has 2 copies of alleles
recessive alleles
