GenBio - Lesson 8

Front

complete set of chromosomes in an organism

Back

karyotype

Front

what do you call the first 22 chromosomes

Back

autosomes

Front

the last pair of chromosomes are called

Back

sex chromosomes

Front

who determines/ the sex of the baby

Back

male

Front

Genetic conditions that occur due to a problem with one of the 23 pairs of chromosomes.

This could be due to a missing, extra, or irregular portion of chromosomal DNA.

Back

chromosomal abnormalities

Front

CAUSES OF ABNORMALITIES:

Happens when an error in cell division leads to gametes with an abnormal number of chromosomes.

Back

error in meiosis

Front

CAUSES OF CHROMOSOMAL ABNORMALITIES:

There are chromosomal abnormalities that can be passed down from a parent.

Back

inherited factors

Front

CAUSES OF CHROMOSOMAL ABNORMALITIES: Many abnormalities arise spontaneously in the egg or sperm and are not inherited from the parent.

Back

random "de novo" events

Front

FACTORS INFLUENCING THE OCCURENCE OF CHROMOSOMAL ABNORMALITIES

Back

Maternal Age, Environmental Factors

Front

TYPES OF ABNORMALITIES

Back

Numerical, Structural