{"id":44894,"date":"2025-06-30T19:37:41","date_gmt":"2025-06-30T19:37:41","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=44894"},"modified":"2025-06-30T19:37:43","modified_gmt":"2025-06-30T19:37:43","slug":"title-sex-linked-punnett-square-practice-and-inheritance-patterns","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/title-sex-linked-punnett-square-practice-and-inheritance-patterns\/","title":{"rendered":"Title: Sex-Linked Punnett Square Practice and Inheritance Patterns"},"content":{"rendered":"\n

Title: Sex-Linked Punnett Square Practice and Inheritance Patterns<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Based on the provided image of the biology worksheet, here are the correct answers and a detailed explanation for the “Sex-Linked Punnett Square Practice” questions.<\/p>\n\n\n\n

Answer:<\/strong>
For question 8, Bob inherited the gene for color blindness from his mother. For question 9, the father determines the biological sex of a baby.<\/p>\n\n\n\n

Explanation:<\/strong><\/p>\n\n\n\n

Bob inherited the gene for color blindness exclusively from his mother. This is because color blindness is a classic example of an X-linked recessive trait, which means the gene responsible for the condition is located on the X chromosome. As a male, Bob has one X and one Y chromosome (XY). He must inherit the Y chromosome from his father to be male, and he inherits his only X chromosome from his mother. Since Bob is color blind, his X chromosome must carry the recessive allele for the trait.<\/p>\n\n\n\n

We know his father is not color blind, so the father\u2019s genotype is XBY, with “B” being the dominant allele for normal vision. The father passed the Y chromosome to Bob, not an X. Bob\u2019s mother has normal vision but must be a carrier of the recessive gene, making her genotype XBXb. She passed her Xb chromosome to Bob. A Punnett square would show the mother’s possible eggs (XB and Xb) and the father’s possible sperm (XB and Y). This cross reveals a 25% probability of having a color blind son (XbY), which confirms that the mother is the parent who passed the trait to Bob.<\/p>\n\n\n\n

For the second question, the father determines the biological sex of a baby. This is proven by a Punnett square showing the parents’ sex chromosomes. The mother has two X chromosomes (XX), meaning every egg she produces will contain one X chromosome. The father has one X and one Y chromosome (XY), so his sperm can carry either an X or a Y. If a sperm containing an X chromosome fertilizes the egg, the resulting offspring will have an XX genotype and be female. If a sperm containing a Y chromosome fertilizes the egg, the offspring will have an XY genotype and be male. Since the mother can only contribute an X chromosome, it is the father’s contribution of either an X or a Y that ultimately determines the baby’s sex.<\/p>\n\n\n\n

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Title: Sex-Linked Punnett Square Practice and Inheritance Patterns The Correct Answer and Explanation is: Based on the provided image of the biology worksheet, here are the correct answers and a detailed explanation for the “Sex-Linked Punnett Square Practice” questions. Answer:For question 8, Bob inherited the gene for color blindness from his mother. For question 9, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44894","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/44894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=44894"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/44894\/revisions"}],"predecessor-version":[{"id":44902,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/44894\/revisions\/44902"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=44894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=44894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=44894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}