The chromosomes of the domestic chicken
The diploid number in the chicken is 66 plus or minus two.
The haploid number is 33 plus or minus one.
There is a very great difference in size between the largest and the smallest chromosomes with every gradation in between.
The largest pair of chromosomes in the male is represented by a single element in the female. These are regarded as sex-chromosomes.
No sign of aW-chromosome was observed.
Volume 100, 2021
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