Unit 6: Ch 11.4

Question 0

What is crossing over

Answer 0

The exchange of hunks of DNA in prophase

Question 1

Where do chromosomes come from in a homologous pair?

Answer 1

One from each parent

Question 2

After fertilization takes place cells rapidly increase by________[type of cell division]

Answer 2

Mitosis

Question 3

Two gametes of 20 chromosomes fuse. How many will the zygote contain?

Answer 3

40 chromosomes

Question 4

What type of cell division produces diploid somatic cell?

Answer 4

Mitosis

Question 5

What type of cell division produces haploid gametes?

Answer 5

Meiosis

Question 6

Differences between mitosis and meiosis

Answer 6

Mitosis:

• 2
• identical
• diploid somatic

Meiosis:

• 4
• unique
• haploid gametes

Question 7

Bacteria undergo this and it leads to genetically identical offspring?

Answer 7

Aseual; binary fission

Question 8

Advantages of seual and aseual

Answer 8

Seual
Genetically different offspring
Different immune systems

Aseual
Populations increase rapidly

Question 9

Disadvantages of aseual and seual

Answer 9

Seual
Long time

Aseual
Genetically identical