Four regions. 19 G-bands; three prominent negative bands (21,31 and 41) divide the arm into four regions; proximal regions 1 and 2 show four bands each, two positive (12 and 14; 22 and 24) and two negative (11 and 13; 21 and 23). Region 3 shows six bands including a prominent negative band (31), three strong positive bands (32, 34 and 36), and two narrow negative bands (33 and 35). Region 4 shows two negative bands (41 and 43), two positive bands (42 and 44), and a negative telomere (45). 17 R-bands; three prominent positive bands (21,31 and 41) divide the arm into four regions, region 1 with four bands (11 and 13 are positive; 12 and 14 are negative), region 2 with two bands (21 is positive and 22 is negative), region 3 with six bands (31, 33, and 35 are positive; 32, 34, and 36 are negative) and region 4 with five bands (41, 43, and 45 are positive; 42 and 44 are negative).

Three regions. 11 G-bands; two narrow but prominent negative bands, one central (21) and one distal (31) separate the arm into three regions. Region 1 has four bands (11 and 13 are negative; 12 and 14 are positive), region 2 has four bands close to each other (21 and 23 are negative; 22 and 24 are positive), and region 3 has a negative band (31) followed by a positive band (32) and a negative telomere (33). 9 R-bands; Region 1 contains a large subcentromeric positive band (11) followed by a negative band (12). Region 2 begins in the center of the arm with a positive band (21) followed by negative (22) then positive (23) then negative (24) bands, all of similar width. Region 3 contains two positive bands (31 and 33) separated by a negative band (32), all of similar width. Band 33 contains the telomeric region.

Three regions. 17 G-bands; Region 1 contains a subcentromeric negative band (11) followed by a positive band (12). Region 2 has a prominent negative band (21), followed by four positive bands (22, 24, 26 and 28). These are separated by three negative bands (23, 25 and 27). Region 3 has a prominent negative band (31), followed by a broad positive band (32, sometimes may contain two or more sub-bands) in the distal half of the q arm; two positive bands almost equally distributed (34 and 36); two narrow negative bands (33 and 35); a negative telomere (37). 15 R-bands; Region 1 contains a large subcentromeric positive band (11) followed by a negative band (12). Region 2 begins with a moderately sized positive band (21), followed by a narrow negative band (22), two narrow positive bands (23 and 25) separated by a wider negative band (24), and the region ends with a wide negative band (26). Region 3 has four positive bands of about equal size (31, 33, 35, and 37) each separated by narrow negative bands (32, 34 and 36). Band 37 is the telomeric region.

One region. 2 G-bands; a subcentromeric negative band (11); a positive telomere (12). 2 R-bands; a subcentromeric positive band (11) followed by a negative telomere (12).

Three regions. 19-G bands; The first region has 2 bands (11 is negative and 12 is positive). The second region is marked by a prominent negative band (21) and four other negative

One region. 3 G-bands; a subcentromeric negative band (11) followed by a large positive band (12) and a negative telomere (13). 4 R-bands; a subcentromeric narrow negative band (11) not always visible, followed by a positive band (12), a negative band (13) and positive telomere (14).

Two regions. 9 G-bands; region 1 has 4 bands, 11 and 13 are negative. The first positive band (12) may be divided into 2 positive sub-bands in decondensed chromosomes. Band 14 is a positive band. Region 2 is marked by a prominent central negative band (21). There are two large positive bands equally distributed (22 and 24), a central negative band (23), and a negative telomere (25). 8 R-bands; Region 1 has a subcentromeric negative band (11) followed by a large positive band (12) and a strong negative band (13, containing a faint positive band in more decondensed chromosomes). Region 2 has a prominent positive band (21); two small negative bands (22 and 24), a large positive band (23), and a strong positive telomere (25).

Chromosome 5

One region. 1 G-band; a subcentromeric positive band (11). 1 R-band; a subcentromeric negative band (11).

Two regions. 11 G-bands; Region 1 has a prominent negative band (11), followed by two large positive bands (12 and 14), separated by a negative band (13). Region 2 begins with a narrower negative band (21) and has three positive bands of similar width (22, 24, and 26), separated by two narrow negative bands (23 and 25). Band 27 is a narrow negative band containing the telomeric region. 9 R-bands; a prominent central positive band (21) divides the chromosome arm in two regions. Region one contains two positive bands (11 and 13) and two negative bands (12 and 14). In region two, band 21 is followed by alternating evenly spaced negative (22 and 24) and positive (23 and the telomere, 25) bands.

One region. 7 G-bands; a subcentromeric positive band (11) followed by a prominant negative band (12) then two positive bands (13 and 15) separated by a narrow negative band (14). Bands 13 and 15 are often joined. Band 16 is a negative band, followed by a positive telomere (17). 7 R-bands; a

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