Question

QUESTION 16

Evidence supporting our close evolutionary relationship to primates includes:

e. All of the above

b. Behavioural similarities

d. A high degree of similarity in DNA sequences

a. Anatomical similarities

c. The presence of vestigial traits shared with apes

QUESTION 17

What is the best source of evidence for understanding the sequence of changes underlying how we diverged from primates?

b. Studies of different modern human populations

e. Molecular (DNA) studies of modern primates

d. Molecular (DNA) studies of modern humans

a. Studies of the behaviour of modern chimpanzees

c. Examination of the hominin fossil record

QUESTION 18

You are an evolutionary biologist who studies human evolution. A colleague hands you a skull belonging to a previously-unknown hominin. The skull comes from a skeleton that was recently unearthed from an excavation in East Africa, and dates to approximately 3 million years ago. You observe that the foramen magnum is positioned in the centre of the bottom of the skull. This observation leads you to hypothesize that:

d. This hominin was not bipdeal

c. This hominin was bipedal

b. This hominin was not capable of using tools

a. This hominin was capable of using tools

e. This hominin was capable of speech

Answer 1

16) e option is correct

We are very close to primates in almost everything which includes behavioral pattern, like crying, happyness ,anger, which our DNA sequences also matches more than 98%, anatomical bone no.location of organ or even vestigial organ lack of pinna.

17) e option is correct

Molecular (DNA) studies of modern primates

If we study the comparative study of DNA sequence than we can find out the % changes of genomic DNA at nucleotide level among different primates and than concludes about evolutionary history. If we observe more changes in nucleotide level then those species diversified earlier or distantly related while if less nucleotide differences than they are close relatives.

18) c option is correct

This hominin was bipedal.

Presents of forman magnanum is characteristic feature of bipdel in mammals including hominin

Thanks..!