The Reading / Listening - Identical Twins - Level 4

A study shows that while identical twins look alike, they are not clones. Scientists analyzed DNA from 387 pairs of identical twins. They looked for mutations in the early stages of development. A mutation is a change in the sequence of the DNA. This can occur when a cell splits. A change can cause slight differences in the DNA when it splits. A tiny change can create differences in height, intelligence, eye colour and in how easy it is to catch a disease.

The study shows that in about 15 per cent of identical twins, one twin had many mutations that the other did not have. This difference helps explain the "nature versus nurture" debate - whether socializing and upbringing affects human behaviour. The research shows that a tiny difference, and not environmental factors, could be the reason for behavioural characteristics or medical conditions.

Try the same news story at these levels:

    Identical Twins - Level 5 or  Identical Twins - Level 6

Sources
  • https://www.theguardian.com/science/2021/jan/08/identical-twins-are-not-so-identical-study-suggests
  • https://www.huffpost.com/entry/twins-not-perfect-clones-study_n_5ff785b2c5b6fc79f463c60c
  • https://www.livescience.com/identical-twins-dont-share-all-dna.html


Make sure you try all of the online activities for this reading and listening - There are dictations, multiple choice activities, drag and drop activities, sentence jumbles, which word activities, text reconstructions, spelling, gap fills and a whole lot more. Please enjoy :-)





Phrase Matching

Paragraph 1

  1. A study shows
  2. identical twins
  3. they are not
  4. They looked
  5. in the early stages
  6. a change in
  7. differences in the DNA
  8. how easy it is
  1. to catch a disease
  2. clones
  3. of development
  4. the sequence
  5. that
  6. when it splits
  7. look alike
  8. for mutations

Paragraph 2

  1. The study
  2. in about 15 per cent
  3. one twin had many mutations that
  4. explain the nature
  5. upbringing affects human
  6. a tiny
  7. environmental factors could
  8. medical
  1. the other did not have
  2. be the reason
  3. conditions
  4. difference
  5. shows that
  6. behaviour
  7. of identical twins
  8. versus nurture debate

Listening — Listen and fill in the gaps

A (1) ___________________ while identical twins look alike, they are not clones. Scientists analyzed DNA from 387 (2) ___________________ twins. They looked for mutations in (3) ___________________ of development. A mutation is a change (4) ___________________ of the DNA. This can occur when a cell splits. A change can cause slight differences in the DNA when it splits. A (5) ___________________ create differences in height, intelligence, eye colour and (6) ___________________ it is to catch a disease.

The study (7) ___________________ about 15 per cent of identical twins, one (8) ___________________ mutations that the other did not have. This difference (9) ___________________ "nature versus nurture" debate - whether socializing (10) ___________________ human behaviour. The research shows that (11) ___________________, and not environmental factors, could be the reason for behavioural characteristics (12) ___________________.

Put a slash (/) where the spaces are

Astudyshowsthatwhileidenticaltwinslookalike,theyarenotclones.Sci
entistsanalyzedDNAfrom387pairsofidenticaltwins.Theylookedform
utationsintheearlystagesofdevelopment.Amutationisachangeinthes
equenceoftheDNA.Thiscanoccurwhenacellsplits.Achangecancauses
lightdifferencesintheDNAwhenitsplits.Atinychangecancreatediffere
ncesinheight,intelligence,eyecolourandinhoweasyitistocatchadisea
se.Thestudyshowsthatinabout15percentofidenticaltwins,onetwinha
dmanymutationsthattheotherdidnothave.Thisdifferencehelpsexplai
nthe"natureversusnurture"debate-whethersocializingandupbringi
ngaffectshumanbehaviour.Theresearchshowsthatatinydifference,a
ndnotenvironmentalfactors,couldbethereasonforbehaviouralcharac
teristicsormedicalconditions.

Student survey

Write five GOOD questions about this topic in the table. Do this in pairs. Each student must write the questions on his / her own paper. When you have finished, interview other students. Write down their answers.

(Please look at page 12 of the PDF to see a photocopiable example of this activity.)

Discussion — Write your own questions

STUDENT A’s QUESTIONS (Do not show these to student B)

(a) ________________

(b) ________________

(c) ________________

(d) ________________

(e) ________________

(f) ________________

(g) ________________

(h) ________________

STUDENT B’s QUESTIONS (Do not show these to student A)

(i) ________________

(j) ________________

(k) ________________

(l) ________________

(m) ________________

(n) ________________

(o) ________________

(p) ________________

Free writing

Write about this topic for 10 minutes. Comment on your partner’s paper.

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Answers

(Please check your answers against the article above.

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