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DNA is organized into structures called ____
Chromosomes
____ carry the codes for producing various proteins.
Alleles
A molecule of DNA is shaped like a ____
twisted ladder
What are dominant traits?
are the ones most people inherit and are more common.
It involves two parents
Sexual reproduction
Name three advantages of sexual reproduction
Answers vary
In _____ the offspring are different
sexual reproduction
Name the two sex cells
Egg and sperm
We have 23 pairs of them in each cell
Chromosomes
What is the other name that sex cells receive?
Gametes
____ have half the total number of chromosomes
Gametes
What is fertilization?
It is the process when an egg and the sperm join.
This is the name of the new cell that forms during fertilization
Zygote
What is an offspring?
The younger version of an organism
