Question

match these

14)Genetic mutation in a single gene             a) homo habilis

15) Leaky                                                                b) Neanderthals

16)Raymond Dart                                                c) srgap2

18) Gene duplication                                            d) austalopithicus

19) sexual dimorphism                                        e) Fox 2

20) First Buried their Dead                                  f) Chimpanzee

==============================================================

21) The first to leave Africa:

a) Neanderthals

b) Australopithecines

c) cro magnons

d) homo erectus

e) Homo habilis

22) Australopithecines had this:

a) 1000cc brains

b) sagittal crest

c) shortened jaws

d) forehead

e) divergent first toe

23) First inward slanting femur:

a) Neanderthals

b) Australopithecines

c) cro magnons

d) homo erectus

e) Homo habilis

24) Haplotypes:

a) determine family origins

b) may cause cancer

c) are DNA sequences

d) are RNA sequences a and c

25) Crossing over occurs here: :

a) pons

b) medulla

c) hypothalamus

d) insula

e) parietal lobe

26) This accompanied brain enlargement:

a) gene duplication

b) bipedalism

c) quadripedalism

d) sagittal crest development

e) all of these

============================================================================

Answer 1

Answer 14- f) chimpanzee

Answer 15- e) Fox 2

Answer 16- d) austalopithicus

Reason:- Robert dart was an Australian anthropologist, who discovered the the first fossil ever found of Australopithecus africanus.

Answer 18- c) SRGAP2

Reason- SRGAP2 is 1 of 23 genes that are duplicated in humans.

Answer 19- a) Homo habilis

Reason- First sexual dimorphism appears in both Australopithecus and in Homo habilis.

Answer 20- b) Neanderthals

Reason- these were the first one that buried their dead with flowers.

Answer 21- d) Homo erectus

Reason- Around 1.9 million years ago, Homo erectus migrated out of Africa to Eurasia.

Answer 22- b) sagittal crest

Reason- Australopithecus has 466 c.c brains and were called  the “robusts” because of their very large cheek teeth set in massive jaws.

Answer 23- b) Australopithecines

Reason- Australopithecus afarensis were to first to show bipedalism. Inward slanting femur is one of it's characteristics.

Answer 24- a) determine family origins

Reason- Halotypes  can be used to identify the origin of the traits.

Answer 25- b) medulla

Reason- The crossing over or decussation of the pyramids occurs at medulla.

Answer 26- b) bipedalism

Reason- shrinkage of saggital crest occurs along with the evolving brain size.