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Life Science: Chapter 5

Across
A process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells
The entire genetic makeup of an organism; also the combination of genes for one or more specific traits
A trait that reappears in the second generation after disappearing in the generation when parents with different traits are bred
An egg fertilized by a sperm with an X chromosome will produce a _____
The likelihood that a possible future event will occur in any given instance of the event
Organisms with desirable characteristics are mated
An organism's appearance or other detectable characteristics
One set of instructions for an inherited trait
Chromosomes that have the same sequence of genes and the same structure
One of the alternative forms of a gene that governs a characteristic, such as hair color
Causes serious lung problems
The structures inside the cell are copied, and then the parent cell divides, making two exact copies. This type of cell reproduction is known as _____
The passing of genetic traits from parent to offspring
Down
Occurs when one allele is not completely dominant over the other allele.
Hemophilia can be _____
If the sperm contains a y chromosome, the offspring will be _____
A diagram that shows the occurrence of a genetic trait in several generations of a family
One of the pairs of chromosomes that determine the sex of an individual
Plant has both male and female reproductive structures
Is used to organize all the possible combinations of offspring from particular parents
Prevents blood from clotting, and people with this disorder bleed for a long time after small cuts.
Occurs when a sperm from the pollen travels through the stigma and enters the egg in an ovule
The trait observed in the first generation when parents have different traits are bred
Prevents hair, skin, and eyes from having normal coloring
A relationship between two different numbers that is often expressed as a fraction