19/1. Right or wrong? Jaa Sulje Kirjaudu sisään lähettääksesi tämän lomakkeen Are the statements correct or incorrect? 1. Genesa) There are genes in the skin cells. correct incorrect b) Genes are hereditary factors. correct incorrect c) Egg and sperm cells both contain genes. correct incorrect d) Genes influence the development of many traits. correct incorrect 2. Chromosomes and genesa) Chromosomes are found in the nucleus. correct incorrect b) Each chromosome contains a single gene. correct incorrect c) Size order from largest to smallest: cell, nucleus, chromosome, gene. correct incorrect 3. Germ cellsa) Germ cells have the same number of chromosomes as any other cells. correct incorrect b) The sex of the embryo is determined during embryonic development. correct incorrect c) The sperm cell contains 22 chromosomes as well as a sex chromosome, which can be either X or Y. correct incorrect d) If a sperm with the chromosome X fertilizes an ovum, the fertilized ovum has sex chromosomes XX. correct incorrect e) A fertilized egg with sex chromosomes XX develops into a girl through cell divisions and cell differentiation.. correct incorrect f) A child becomes a boy if a sperm with the chromosome Y fertilizes the egg. correct incorrect 4. Identical twinsa) The genotype of identical twins is 100% identical. correct incorrect b) The phenotype of identical twins is 100% identical. correct incorrect Kirjaudu sisään lähettääksesi tämän lomakkeen
