Biology Ch. 10 Sexual Reproduction & Genetics

Which is a difference between meiosis 1 & meiosis 2?

the way an organism looks andbehaves

homologous chromosomes become visible, condense & form pairs

What percent possibility does an offspring have if the genotype is Tt?

offspring result from parents that have differentforms of alleles for certain traits

an observed trait that masks therecessive form of a trait

How many chromosomes are found in human body cells?

Cell growth and repair is completed.

What stage does J represent?

The DNA of the resulting daughter cells are identical.

the occurrence of one or more extra sets of all chromosomes in anorganism

segments ofhomologouschromosomesbreak andchange places, traits located far apart

DNA is replicated

What is the genotype for A in the punnett square?

What genotype is A?

What is formed as a result of mitosis?

segments of homologous chromosomes break and change places, traits located close together

chromosome number is reduced from 2n to 1n

What genotype is D?

What stage does K represent?

What phenotype would the Tt genotype code for if:T=tongue rolling & t=unable to roll tongue

What stage does D represent?

the allele combination anorganism contains

new combinations of genes that result from crossing over andindependent assortment

What stage does A represent?

an organism’s genotype whentwo alleles for a trait are different

What genotype is C?

cell divisionreduceschromosomenumber

states that genes fordifferent traits are inherited independently of each other

an organism’s genotype whentwo alleles for a trait are the same

when male and female plant gametes come from thesame plant for fertilization

trait that can be observed if thedominant trait is not present

Two sets of cell divisions occur.

Potential evolutionary changes can occur more frequently.

large complex polymer essential to life: provides structure & helps carry out cell metabolism

Use the punnett square: what is the genotype for B?

An organism with the genotype DD for a trait is ___

What percent possibility does an offspring have if the Phenotype is tongue rolling (T)?

How is an allele described?

The probability that a cross of heterozygous yellow pea & green pea produce a green offspring

cell containstwo copies of each chromosome

two haploidsex cells, onefrom eachparent combine

Which describes a gene?

consistentlyproduce the same trait in the offspring

contains one copy of each chromosome

A segment of DNA on a chromosome that controls the productionof a protein

What percent possibility does an offspring have if the genotype is TT?

What genotype is B?

Gametes are formed.

every individual has 2 alleles of each gene & whengametes are produced, each gamete receives 1 

 pairs of chromosomes

The passing of hair color from a parent to its offspring in humans is an example of ___

 is the branch of biology that studies how traits areinherited

A sex cell

What stage does F represent?