AQA UNIT B6 MEGA QUIZ ON GCSE SCIENCE Inheritance, variation and evolution

Question 1

Which statement best describes genetic engineering?

Accepted Answer

DNA from one species is inserted to another species

Question 2

Which is an example of a genotype?

Accepted Answer

Bb

Question 3

Meiosis is _____.

Accepted Answer

the process that reduces chromosomes to form sex cells.

Question 4

In genetic engineering, vectors...

Accepted Answer

insert DNA into cells

Question 5

Who proposed the Theory of Evolution?

Accepted Answer

Charles Darwin

Question 6

Which of these are evidence for evolution?

Accepted Answer

Fossils

Question 7

Which of the following IS a cell that forms during MEIOSIS?

Accepted Answer

egg cells

Question 8

What are Archea famous for

Accepted Answer

Living in extreme enviorments

Question 9

What are the three domains?

Accepted Answer

bacteria, archaea, and eukarya

Question 10

A human with two X chromosomes is...

Accepted Answer

Female

Question 11

At the end of meiosis, the sex cells have _____ chromosomes.

Accepted Answer

23

Question 12

Unlike mitosis, meiosis results in the formationof

Accepted Answer

Genetically unique cells, 4 haploid daughter cells

Question 13

Mitosis produces _________ cells and meiosis produces __________ cells.

Accepted Answer

2 diploid; 4 haploid

Question 14

Which answer represents a homozygous recessive genotype?

Accepted Answer

gg

Question 15

A gene codes for...

Accepted Answer

A sequence of amino acids which makes a specific protein

Question 16

Natural selection states that _________________________________.

Accepted Answer

organisms best adapted to their environment will survive

Question 17

What is a gamete?

Accepted Answer

sperm or egg

Question 18

Where are genes located?

Accepted Answer

On chromosomes

Question 19

A goat has 60 chromosomes. How many chromosomes will there be after meiosis?

Accepted Answer

30

Question 20

Continuous and Discontinuous variation - Which characterisitic shows discontinuous variation?

Accepted Answer

Gender

Question 21

What percentage will have heterozygous genotypes?

Accepted Answer

50%

Question 22

What is the best way to describe the number of chromosomes in a human body cell?

Accepted Answer

23 pairs

Question 23

Heterozygous is

Accepted Answer

different genetic makeup - Bb

Question 24

Antibiotic resistance supports the theory of evolution what is the 1st stage of this process?

Accepted Answer

bacteria show genetic variation in their population

Question 25

What does the DNA structure look like?

Accepted Answer

Double Helix

Question 26

Which of the following is an example of discontinuous variation?

Accepted Answer

Blood group

Question 27

The purpose of the Human Genome Project was to

Accepted Answer

sequence the genetic code of humans

Question 28

Homozygous is

Accepted Answer

the same genetic makeup from both parents, BB or bb

Question 29

What is one use of genetic engineering?

Accepted Answer

Manufacturing Insulin

Question 30

Which answer represents a heterozygous genotype?

Accepted Answer

Bb

Question 31

What are alleles?

Accepted Answer

a form of a gene

Question 32

What is a concern about Genetic Engineering?

Accepted Answer

Reduce biodiversity

Question 33

What percentage will have dominant homozygous genotypes?

Accepted Answer

0%

Question 34

an advantage of GM crops

Accepted Answer

missing nutrients can be included

Question 35

Selective breeding is done by

Accepted Answer

Humans

Question 36

What does GM stand for in GM Crops?

Accepted Answer

Genetically Modified.

Question 37

Which is homozygous recessive?

Accepted Answer

aa

Question 38

Which of the following activities puts the greatest number of animals at risk for extinction?

Accepted Answer

Destruction of habitat

Question 39

Variation - What are two examples of inherited variation?

Accepted Answer

Eye colour and nose shape.

Question 40

Which combination of alleles could someone with polydactyly have?

Accepted Answer

FF or Ff

Question 41

What term describes organisms with identical DNA?

Accepted Answer

Clones

Question 42

Is polydactyly dominant or recessive?

Accepted Answer

Dominant

Question 43

What is the probability that the offspring will be Homozygous Recessive?

Accepted Answer

50%

Question 44

Carl Linnaeus is best known for which contribution to science?

Accepted Answer

classification of plants and animals

Question 45

Which part of the cell contains DNA and controls the function of the cell

Accepted Answer

nucleus

Question 46

Which answer represents a homozygous dominant genotype?

Accepted Answer

RR

Question 47

How do you "win" at natural selection?

Accepted Answer

survive & reproduce

Question 48

Variation - What are two examples of both inherited and environmental variation?

Accepted Answer

Intelligence and hair colour.

Question 49

What is cystic fibrosis?

Accepted Answer

The lungs and digestive system are clogged by mucus

Question 50

Which is an example of a phenotype?

Accepted Answer

tall

Question 51

Antibiotic resistance occurs in

Accepted Answer

bacteria.

Question 52

What is discontinuous variation?

Accepted Answer

there is a limited number of possibilites

Question 53

What are the 4 different letters (ATCG) in DNA called?

Accepted Answer

Bases

Question 54

What might GM crops be resistant to

Accepted Answer

Pests

Question 55

cystic fibrosis is caused by a...

Accepted Answer

recessive allele

Question 56

Selective breeding is...

Accepted Answer

only picking individuals with good characteristics to breed, used in farming with plants and animals

Question 57

Through the process of MEIOSIS, cells are made that are...

Accepted Answer

different

Question 58

Alleles can be either ... (select 2)

Accepted Answer

recessive, dominant

Question 59

If parents had TT and Tt genotypes, what phenotype could their offspring be?

Accepted Answer

tall

Question 60

Why has evolution resulted in antibiotic resistance in bacteria?

Accepted Answer

Resistant bacteria survive and pass on their genes

Question 61

Darwin's first observations of natural selections involved:

Accepted Answer

birds

Question 62

The human X and Y chromosomes

Accepted Answer

include genes that determine an individual's sex.

AQA UNIT B6 MEGA QUIZ ON GCSE SCIENCE Inheritance, variation and evolution

Questions 62

AQA UNIT B6 MEGA QUIZ ON GCSE SCIENCE Inheritance, variation and evolution

Questions 62