Genetics Basics - Biology 21-22

a portion of the chromosome that carries the information for a certain trait

diploid

process that makes haploid cells (sperm or egg)

haploid

Carries the cell’s genetic information

The study of inheritance is called

all chromosomes that are NOT sex chromosomes

Traits that are expressed, even if there is only one copy of this allele

People can have either attached or unattached earlobes. Attached and unattached earlobes are 2

How many alleles can an organism have for one gene?

heterozygous alleles

This organized picture of chromosomes is called a

process where two haploid cells (sperm and egg) join to make the first cell of an offspring

Which of the following correctly arranges the genetic material from largest to smallest?

A chromosome is to a gene as a book is to a ____________.

genotype

coiled DNA structure that carries genetic information

phenotype

different versions of the same gene

XX for female or XY for male mammals

the location of a gene on a chromosome

Why are chromosomes paired?

identify the structure below

Red, pink, and white all represent different ____________ for flower color.

homozygous alleles