Meiosis and inheritance

Corn has 20 chromosomes in it's "regular body cells." How many chromosomes are in its gametes?

Fruit flies have 4 chromosomes in their haploid gametes. How many chromosomes are in their body cells?

The number of chromosomes in a diploid body cell is related to the number of chromosomes in a haploid gamete how?

• body cells have double the chromosomes

• body cells have half the chromosomes

• gametes have double the chromosomes

• gametes and body cells have equal chromosomes

In humans, the haploid number of chromosomes is ____.

• 23

• 46

• 69

• 92

Which of the following is the best definition for MEIOSIS?

• the process of two haploid cells uniting

• the counting of chromosomes within a diploid cell

• a two-step process that reduces the number of chromosomes in half such that there is only one copy of all the chromosomes

• the equational division of a cell into two identical copies

The products of MEIOSIS have _______ number of chromosomes.

• haploid

• diploid

THIS IMAGE SHOWS WHAT IS HAPPENING WITH THE CHROMOSOMES?

• NON- DISJUNCTION

• METAPHASE

• TELOPHASE

• CROSSING OVER

THE END RESULT OF MEIOSIS IS...

• FOUR UNIDENTICAL GAMETES

• FOUR IDENTICAL GAMETES

• TWO IDENTICAL GAMETES

• TWO UNIDENTICAL GAMETES

THE GAMETES ARE CONSIDERED TO HAVE ONE HALF OF THE GENETIC INFO SO IT IS CALL

• DIPLOID (2N)

• DIPLOID (N)

• HAPLOID (2N)

• HAPLOID (N)

THE STRUCTURE THAT CONTAINS THE DNA IS CALLED (CHOOSE THE MOST SPECIFIC ANSWER)

• CHROMOSOME

• CELL BODY

• CELL

• NUCLEUS