Karyotypes

Question 1

The human diploid number is ___

Answer 1

46 (chromosomes) in every cell

Question 2

What is a haploid and the number?

Answer 2

Haploid is half of the diploid #
Found in sex cells
Haploid # is 23

Question 3

What are homologous chromosomes?

Answer 3

One pair of chromosome from mom and dad

Question 4

TRUE OR FALSE
There are 23 homologous pairs

Answer 4

False
The sex chromosomes are not homologous

Question 5

What makes chromosomes homologous?

Answer 5

1. Same length
2. Same gene loci
3. Same centromere loci

Question 6

What chromosome codes for boy and girl?

Answer 6

Boy: XY
Girl: XX

Question 7

What is a karyotype?

Answer 7

An image where chromosomes are arranged in homologous pairs according to they size.
They show any organisms genome
Homologus chromosomes are sorted by size and numbered 1-22

Question 8

Autosomes

Answer 8

Non-sex chromosomes
Codes for all other traits (Height, skin colour, shape)

Question 9

What can a karyotype tell us?

Answer 9

1. Gender
2. Abnormalities “atypical”

Question 10

Definition: Diploid and Haploid

Answer 10

Diploid: Total number of chromosomes in a somatic cell
Haploid: Number of homologous pairs of chromosomes in a sex cell

Question 11

Non-dysjunction

Answer 11

Occurs during cell division when sperm and eggs ate made the sister chromatids don’t sperate evenly so some cells are missing chromosomes or have extra

Question 12

Monosomy vs Trisomy

Answer 12

Monosomy: One missing chromosome
Trisomy: One extra chromosome

Question 13

Klinefelter syndrome

Answer 13

XXY

Question 14

Turner syndrome

Answer 14

X

Question 15

Jacob syndrome

Answer 15

XYY

Question 16

Down syndrome

Answer 16

3 #21 chromosome

Question 17

Edward syndrome

Answer 17

3 #18 chromosome

Question 18

Patau syndrome

Answer 18

3 #13 chromosome