Hand Dominance in Identical and Nonidentical Twins IELTS Writing Task 1

Hand Dominance in Identical and Nonidentical Twins IELTS Writing Task 1 Sample Answer is given below. The candidates are required to present a tentative answer for the same. IELTS writing task 1 requires candidates to write a summary or overview based on a diagram, a table, a line graph, or a bar graph in at least 150 words. IELTS Academic Writing Task 1 is a writing task for 150 words. Candidates are given 20 minutes and are required to write a summary for IELTS Academic Writing Task 1. Meanwhile, candidates might consider practicing IELTS writing practice papers to help improve their writing skills.

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Topic: The two pie charts below show hand dominance in identical and non-identical twins.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.

Band 9 IELTS Answer

The above pie charts show the distribution of hand dominance among identical and non-identical twins. Right-handedness was by far the predominant trait for both groups, accounting for 85% of identical twins and 89% of fraternal twins.

However, the two groups had some notable differences in the less common handedness categories. Among identical twins, who share all of their genes, left-handedness occurred at twice the rate of ambidexterity - 10% compared to 5% respectively. In contrast, for fraternal twins who on average share half their genes, ambidexterity was significantly more prevalent than left-handedness, comprising 8% versus only 3% of this group.

While a strong right-hand preference dominated in both samples, the patterns of left-handedness and mixed dominance differed depending on the degree of genetic similarity, with identical twins demonstrating more closely matching handedness overall.

Band 8.5 IELTS Answer

These graphs illustrate the distribution of handedness among two groups - identical twins and non-identical twins. A clear majority, over 85% in both groups, exhibited right-hand dominance. While right-handedness was overwhelmingly prevalent, the patterns of less frequent handedness categories varied between the twin types.

Identical twins displayed some notable differences compared to non-identical twins. Left-handedness occurred twice as often as ambidexterity among identical twins, at 10% and 5% respectively. In contrast, for non-identical twins, who share approximately half their genes, ambidexterity was significantly more common than left-handedness at 8% and 3%.

The data in the graphs indicates that identical twins were more likely to demonstrate matching hand preference compared to non-identical twins. This demonstrates that while right-handedness is still by far the most common, other handedness patterns differ between sets of identical and non-identical twins.

Band 8 IELTS Answer

The pie chart shows the distribution of handedness between identical and non-identical twins. Right-handedness was the dominant trait for both groups, making up 85% of identical twins and 89% of nonidentical twins. However, differences emerged among the less common categories. Among identical twins, who share completely matching genes, left-handedness occurred at twice the rate of ambidexterity at 10% and 5%, respectively.

In contrast, for fraternal twins who share an average of half their genes, ambidexterity was significantly more common than left-handedness. Specifically, 8% of fraternal twins were ambidextrous, while only 3% were left-handed.

While right-handed individuals accounted for the vast majority in both samples, the patterns of less frequent handedness types diverged according to the degree of genetic similarity between twins. Identical twins exhibited more closely aligned handedness overall, suggesting complete gene matching plays a role in influencing this trait.

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