Chromosomes, chromatids, & ploidy

Question 1

Label the chromosome. Which arm is p and which arm is q?

Answer 1

Short Arm - “p arm”
Long Arm - “q arm”

Question 2

Structure: Equal Length P Arm?

Answer 2

Metacentric

Question 3

Structure: Long Q Arm?

Answer 3

Submetacentric

Question 4

Structure: Little P Arm?

Answer 4

Acrocentric

Question 5

Structure: No P Arm?

Answer 5

Telocentric

Question 6

Haploid

Answer 6

n = 1
1copy of each chromosome
3 non-homologous chromosomes

Question 7

Diploid

Answer 7

n = 2
2 copies of each chromosome
3 pairs of non-homologous chromosomes

Question 8

Chromatid

Answer 8

Single DNA molecule, (one half of a chromosome)

Question 9

Chromosome

Answer 9

A pairing of chromatids, 2 DNA molecules connected at the centromere

Question 10

Pair of Chromatids vs. Chromosomes: Identity & order of genes

Answer 10

Same, Same

Question 11

Pair of Chromatids vs. Chromosomes: Banding pattern in karyotype

Answer 11

Same, Same

Question 12

Pair of Chromatids vs. Chromosomes: Alleles of genes

Answer 12

Same, Different

Question 13

Pair of Chromatids vs. Chromosomes: Chromosome size

Answer 13

Same, Same