CHP 8

Question 1

Homologous Chromosome

Answer 1

Matching pairs, carry same gene sequence; same size, shape, color

Question 2

Sex Chromosomes of human male and female?

Answer 2

22 autosomes and XX for female; XY for male= 23

Question 3

Autosomes

Answer 3

all chromosome in humans exempt sex; 44 or 22 pairs

Question 4

Stomatic Cells

Answer 4

all body cells except gametes; 46 chromosomes

Question 5

of chromosomes in egg & sperm if given the diploid #

Answer 5

n=23 (half of d)

d=2n

Question 6

Which of the following can be determined by karyotype?

Answer 6

the sex of the individual, whether the individual has Down Syndrome, The number of chromosomes present

Question 7

Karyotype

Answer 7

display of all chromosomes (homologous pairs)

Question 8

Haploid and Diploid Cells

Answer 8

Haploid= one set of chromosomes; gametes; 23

Diploid: 2 sets of chromosomes; 2n; 46

Question 9

Benign Tumor

Answer 9

Lump; abnormal cell

Question 10

Malignant tumor

Answer 10

referred as cancer; spread to other body parts; interrupt normal body functions

Question 11

Metastasis

Answer 11

spread of cancer cell beyond original site

Question 12

Gene

Answer 12

section of chromosome

Question 13

Chromatin

Answer 13

fibers composed of equal amounts of DNA & Protein

Question 14

Nucleosomes

Answer 14

wrapping around histones

Question 15

Centromere

Answer 15

sister chromatids joined together at narrow waist

Question 16

Meiosis

Answer 16

produces haploid gametes; consist of 2 cell division

Question 17

Crossing Over

Answer 17

NONSISTER chromatids exchange of genetic material; in prophase I

Question 18

Independent assortment

Answer 18

allele pairs separate independently during the formation of gametes.

Question 19

Random Fertilization

Answer 19

egg cell fertilized randomly, leading to genetic variation