Identify which baby belongs to which set of parents.

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Compare the bands of each set of parents to each of the babies and determine which baby belongs to which set of parents. Line up the bands and illustrate which bands each baby inherited from its mother and from its father.

 

Figure 1

 

DNA fingerprint data obtained from three sets of infants and three sets of

parents

 

(a) Identify which baby belongs to which set of parents.

(b) Explain why not all the bands in the mother’s or father’s profiles have a

counterpart in the baby’s DNA profile.

(c) List other examples where DNA fingerprinting could be used to identify an individual.

(d) Explain why blood typing may not be a viable method of determining which baby belongs to which parent.

(e) Identify the largest DNA fragment on the gel. Identify the smallest DNA

fragment on the gel.

 

This image seems to be a DNA fingerprinting chart that might be used in an educational context to explain the concept of DNA matching and inheritance. The chart shows genetic profiles of three couples (Couple A, Couple B, and Couple C) as well as three babies (Baby 1, Baby 2, and Baby 3).

### Description of the Chart:
- **Columns:**
  - The first six lanes display DNA fingerprinting results for three couples:
    - **Couple A:** Male (M) and Female (F)
    - **Couple B:** Male (M) and Female (F)
    - **Couple C:** Male (M) and Female (F)
  - The next three lanes display DNA fingerprinting results for three babies:
    - **Baby 1**
    - **Baby 2**
    - **Baby 3**

### Explanation of DNA Fingerprinting:
DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles. The bands represent specific segments of DNA that vary in length between individuals. 

### Analysis:
- Each band in a baby's lane should match some of the bands present in one of the parents' lanes (as the child's DNA is inherited from both parents).
- To determine which couple is likely to be the parents of each baby, compare the bands of the babies to the bands seen for each couple:
  - **Comparison of Baby 1:**
    - If a band in Baby 1's lane is also found in Male or Female of Couple A, Couple B, or Couple C, note it.
    - Continue this method to determine which couple shares the most bands with Baby 1.

  - **Comparison of Baby 2:**
    - Follow the same procedure as Baby 1.

  - **Comparison of Baby 3:**
    - Follow the same procedure as Baby 1.
    
### Example Result:
- Suppose Baby 1 has most of its bands matching with Couple B(M) and Couple B(F), it suggests that Couple B is the likely parents of Baby 1.
- Repeat this identification process for Babies 2 and 3.

### Educational Insight:
This type of analysis helps understand inheritance patterns and the reliability of genetic markers in determining familial relationships, which is pivotal in fields like forensic science, paternity testing, and genetic research.
Transcribed Image Text:This image seems to be a DNA fingerprinting chart that might be used in an educational context to explain the concept of DNA matching and inheritance. The chart shows genetic profiles of three couples (Couple A, Couple B, and Couple C) as well as three babies (Baby 1, Baby 2, and Baby 3). ### Description of the Chart: - **Columns:** - The first six lanes display DNA fingerprinting results for three couples: - **Couple A:** Male (M) and Female (F) - **Couple B:** Male (M) and Female (F) - **Couple C:** Male (M) and Female (F) - The next three lanes display DNA fingerprinting results for three babies: - **Baby 1** - **Baby 2** - **Baby 3** ### Explanation of DNA Fingerprinting: DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles. The bands represent specific segments of DNA that vary in length between individuals. ### Analysis: - Each band in a baby's lane should match some of the bands present in one of the parents' lanes (as the child's DNA is inherited from both parents). - To determine which couple is likely to be the parents of each baby, compare the bands of the babies to the bands seen for each couple: - **Comparison of Baby 1:** - If a band in Baby 1's lane is also found in Male or Female of Couple A, Couple B, or Couple C, note it. - Continue this method to determine which couple shares the most bands with Baby 1. - **Comparison of Baby 2:** - Follow the same procedure as Baby 1. - **Comparison of Baby 3:** - Follow the same procedure as Baby 1. ### Example Result: - Suppose Baby 1 has most of its bands matching with Couple B(M) and Couple B(F), it suggests that Couple B is the likely parents of Baby 1. - Repeat this identification process for Babies 2 and 3. ### Educational Insight: This type of analysis helps understand inheritance patterns and the reliability of genetic markers in determining familial relationships, which is pivotal in fields like forensic science, paternity testing, and genetic research.
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