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Bio101 > Evolution And Heredity > Flashcards

Evolution And Heredity Flashcards

1
Q

Heredity and evolution are linked together by

A

Inheritable traits

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2
Q

……are the base of heredity

A

Chromosomes

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3
Q

Physical base of heredity

A

Genes

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4
Q

Chemical basis of heredity are

A

Dna

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5
Q

…….control traits

A

Genes

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6
Q

……is the study of transmission of genetic character from one generation to another

A

Heredity

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7
Q

The process of transfer of heredity material from one generation to another

A

Genetics

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8
Q

What is genotype

A

The genetic constitution of an organism

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9
Q

External feature of an organism is

A

Phenotype

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10
Q

Inheritance can be categorized into

A

Law of dominance
Law of segregation
Law of independent assortment

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11
Q

Wht does law of dominance say

A

Offspring of crossbreed parents only show dominant characteristics in f1 generation

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12
Q

……..is the process that determines the biological sex of an offspring and as result the sexual characteristics that they will develop

A

Sex determination

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13
Q

Another name for sex chromosomes are

A

Allosomes

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14
Q

Full meaning of Dna

A

Deoxyribonucleic acid

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15
Q

Theory developed by darwin

A

Theory of natural selection or darwinism or theory of evolution

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16
Q

In what yr did darwin publish his book

A

1859

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17
Q

Mendel conducted his experiment

A

Btw 1856 and 1863

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18
Q

Mendel submitted his result in the yr

A

1865

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19
Q

One single cell contain how many genes

A

20,000-30,000 genes

20
Q

Genes are made up of

A

Dna

21
Q

Meaning of Rna

A

Ribonucleic acid

22
Q

There are…….living species

A

8.7million

23
Q

Wht are homologous organ

A

HB the same structure but different function

Eg is the limb of man and reptile

24
Q

Wht are Analogous organ

A

That hv the different function but same structure

Eg wing of bat and bird

25
Q

Wht is genome

A

All genetic information of an organism

26
Q

Our evolutionary history is written in our

A

Genome

27
Q

Primate development diverge from other mammal

A

85 million yrs ago

28
Q

Homini(including humans and chimpanzees) separates from grilling abot

A

8million yrs

29
Q

Humans and chimps separated about

A

7.5 million yrs

30
Q

How many main stages of human evolution are there

A

Four

31
Q

First stage consist of wht?

And btw what yr

A 
Proto hominins(sahelanthropus,ororins, ardipithecis)
Four to seven million yrs
32
Q

Second stage was in what yr?

And marked by the appearance of

A

Four million years ago

Australopithecus

33
Q

Third stage featured

Around?

A

Paranthropus

2.7 million yrs

34
Q

Fourth stage featured the genus homo

A

1.8 to 2.5 million

35
Q

…….which homo use stone tools and has brain the size of a chimpanze

A

Homo habilis

36
Q

……….. Homo had double the Brain size and may hv been the first to control fire

A

Homo erectus and ergaster

37
Q

Homo heidelbergenesis appeared

A

800,000

38
Q

Homo sapiens appeared

A

200,000 yrs ago

39
Q

Human acquired symbolic culture and language around

A

50,000 yrs

40
Q

……… Deemed to be the ancestors of man

A

Dryopithecus

41
Q

Fossil of australopithecus was first discovered in

A

South Africa

42
Q

First fossil of homo erectus were found in

A

Java

43
Q

The two sub species of homo sapiens are

A

Homo sapiens sapiens

Homo sapiens neanderthalensis

44
Q

Human sapiens were first discovered in

A

Europe

45
Q

Homo sapiens neanderthalensis could……

A

Hunt big animals such as mammoths

46
Q

Homo sapiens sapiens cranial capacity is abt

A

1350c

Bio101 (8 decks)

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