ACE Biology pace 1107

complex organic compound; contains an organism's genetic code.

DNA

____________-which involves one chromosome replication and two cell divisions, produces four haploid gametes each with 23 chromosomes.

Meiosis

___________, which involves one chromosome replication and one cell division, produces two diploid daughter cells, each with 46 chromosomes.

Mitosis

___________enables a person to grow until his body is fully developed and enables worn out somatic cells in the body to be replaced.

Mitosis

each matching gene within a chromosome pair

allele

the replicated chromosomes split apart to form individual chromosomes, and the microtubules pull the chromosomes toward the poles of the cell during___________.

anaphase.

each molecule of a DNA

chromosome

cell containing one set of chromosomes from the father's DNA and one set from the mother's DNA

diploid

gender of a person with two X chromosomes

female

portion of a chromosome; contains the code for a specific physical trait.

gene

the recessive trait in the____________of an organism can be passed on to future generations, even if it is not expressed in the____________.

genotype; phenotype.

A cell with one-half the diploid number of chromosomes is a ______________cell.

haploid

During ______________, when a cell is preparing for mitosis, the cell produces proteins, chromosome replication occurs, and the organelles are duplicated.

interphase

gender of a person with one X and one Y chromosome

male

the microtubules pull the replicated chromosomes until they line up along the equator during _______________.

metaphase

set of a person's expressed physical traits; determined by his genes.

phenotype

During_______________, the cell's nuclear membrane dissolves and additional microtubules extend from the centrosomes and attach to the replicated chromosomes.

prometaphase

During_______________which is the first phase of mitosis, the micro-tubules grow longer and push the centrosomes apart until they are on opposite sides of the cell.

prophase

The_________of an offspring's possible genetic combination is calculated using a visual model called a Punnett square.

ratio

duplication of a chromosome.

replication

During_____________, the cell begins to construct a new nuclear membrane around each cluster of chromosomes

telophase

During Meiosis, a__________is formed when both replicated chromosomes of a chromosome pair join together.

tetrad