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Science 7 Chapter 5 Vocabulary words

Across
An offspring of many generations that have the same trait.
The alleles are neither dominant nor recessive. As a result, both alleles are expressed in the offspring.
A change in gene or chromosome.
A cell that contains two sets vol chromosomes, one set from each parent.
The process in which an egg and sperm join.
An organism that has two identical alleles for a trait.
In this process genetic materials from two parents combines to produce a new organism, which differs from both parents.
Today, scientists use this word for the factor that controls a trait.
A stems height or seed color.
It copies down the coded message from the DNA in the nucleus, and carries the message to ribosome in the cytoplasm.
A chart that shows all the possible combinations of alleles that can result from a genetic cross.
Down
A number that describes how likely it is that a certain event will occur.
An organism that has two different alleles for a trait.
Another type of RNA, carries among acids to the ribosomes and adds them to the growing proteins.
The process in which the number of chromosomes is reduced by half to form sex cells-sperm and eggs.
They are the difference forms of gene.
It is hidden whenever the dominant allele is present.
An organism that has two different alleles for a trait.
It is the one whose trait always shows up in an organism when the allele is present.
An organism's genetic makeup or allele combinations.
An organisms physical appearance or visible traits.
The scientific study of heredity.
The passing of physical characteristics from parents to offspring.