Science exam

Mitosis is a cellular process that produces _____ genetically _________________ Daughter cells

1. two
2. identical

Meiosis is a cellular process that produces ____ genetically _____________ daughter cells

1. Four
2. similar

The first stage of mitosis where chromatid condenses the form chromosomes

Prophase

The stage of mitosis where of the chromosomes line up at the cells equator

Metaphase

The stage of meiosis were homologous chromosomes swap genetic material

Prophase one

A centriole is a structure that

Makes spindle fibers

What is the somatic cell

Body cells

How many chromosomes do somatic cells have

46

What is a gamete?

Sex cells

How many chromosomes the gametes have

23

Are gametes haploid or diploid?

haploid

When the order of bases in a strand of DNA is changed, a___________can occur

Mutation

When a portion of the DNA is left out and not copied during DNA replication it is a mutation called

Deletion

describe the mutation where segment of a chromosome is lost

Deletion

What is a genetic mutation

A mistake or change and a DNA sequence

What would be the partner strand to a DNA strand with the code ATCG

TAGC

The base adenine pairs with which DNA base

Thymine

The base guanine with which other DNA base

Cytosine

Heterozygous

an organism with two different alleles for a trait

Homozygous

An organism with two same alleles for a trait

Genotype

The allele combination or genetic make up

Phenotype

An organisms physical appearance or the traits it has

crossing over

Process where homologous chromosomes swap info

Metaphase one

The homologous chromosomes line up in the middle of the cell

Cytokinesis

The process that ends cell division by cutting the cell in half

Prophase 1

The phase of meiosis where the Homologous chromosomes line up