Chapter 12: Sexual Reproduction and Genetics

Person A has X & Y chromosomes. Person B has two X chromosomes. The gender of each is

A_____ cell contains two (2) copies of each chromosome.

Segments of homologous chromosomes break off and change places with each other.

Which phase of meiosis is pictured?

A plant that is Rr will have round seeds. Round seeds is the plant’s _____.

A_____ cell contains one (1) copy of each chromosome.

A plant _____ to reproduce when its male and female gametes come from the same plant.

A plant _____ to reproduce when its male and female gametes come from two different plants.

What is a segment of DNA on a chromosome that controls the production of a protein?

Which branch of biology studies how traits are inherited?

What stage do homologous chromosomes line up at the middle of the cell?

If an organism's haploid number is 20, its diploid number is

Tt represents a plant that is _____.

 An organism is said to be _____ when the two alleles for a trait are different.

Which type of trait requires two copies of the allele to be expressed?

During which phase of meiosis does crossing over occur?

What is a phenotype?

Which form of reproduction results in increased genetic diversity?

A plant that is Yy will have yellow seeds. Yy is the plant’s _____.

What is a genotype?

What is the diagram that is used to predict the possible outcomes for a particular cross?

What is another name for a sex cell?

Pairs of chromosomes, one from each parent, are known as _____ chromosomes.

A tall pea plant (Tt) is crossed with a short plant (tt). What % of the offspring will be tall?

Which type of trait needs only one copy of the allele to be expressed?

The process by which two haploid cells combine to form one diploid cell.

What is the name given to the two different forms of a gene?

Which law states that genes for different traits are inherited independently of each other?

Mitosis involves _____ cell divisions.

In_____ reproduction, an organism inherits its genes from two different parents.

TT represents a plant that is _____.

What is a cellular structure that contains DNA?

Meiosis involves _____ cell divisions.

What is the final result of meiosis?

In_____ reproduction, an organism inherits its genetic material from a single parent.

What is the final result of mitosis?

The type of allele that is masked by another allele is called

In what stage do sister chromatids separate from each other?

How many floppy-ear rabbits are there if B= black, b=white, E=upright ears, e= floppy ears?

An organism is said to be _____ when the two alleles for a trait are the same.

This process forms body (somatic) cells.

tt represents a plant that is _____.

A tall pea plant (TT) is crossed with a short plant (tt). What will be true of the offspring?

What are offspring that result from parents that have different forms of alleles for traits?