biolagy

Question 1

what results in characteristic diversity?

Answer 1

differences in the DNA

Question 2

what is DNA?

Answer 2

an extremely large molecule containing millions of atoms joined by chemical bonds

Question 3

What is a double helix

Answer 3

A pair of separate strands of DNA twisted together

Question 4

What is a ladder?

Answer 4

Drawing of a double helix DNA

Question 5

What is each DNA strand made of?

Answer 5

repeated molecule units called nucleotides

Question 6

how are DNA strands created?

Answer 6

when sugar and phosphate become two different nucleotides bonded together forming the backbone

Question 7

what are the four different bases of DNA?

Answer 7

Adenine thymine cytosine gumine

Question 8

What are the groups of two that the letters can bond together in?

Answer 8

AT and GC

Question 9

what is replication?

Answer 9

The process of copying one DNA double helix into identical double helix is

Question 10

What tells the cell what proteins to make

Answer 10

The genetic information in DNA

Question 11

What does protein do?

Answer 11

Make the structure of the cells

Question 12

What is protein synthesis?

Answer 12

The process of making protein from DNA

Question 13

what is transcription?

Answer 13

DNA gets transcribed into messenger RNA which can leave the nucleus

Question 14

how does transcription begin?

Answer 14

MRNA fines to ribosome made up of RRNA

Question 15

what is protein made up of?

Answer 15

Many amino acids bonded together in a long chain

Question 16

How are protein strands made?

Answer 16

when a TRNA that is floating around in the cell finds a con match on the mRNA it bonds and its amino acid is linked with a peptide bond that is growing protein

Question 17

How are amino acids connected?

Answer 17

Buy a peptide bond

Question 18

what happens in inter phase?

Answer 18

DNA exit a fibre called chromatic

Question 19

what happens in mitosis or meiosis?

Answer 19

The cell divides to make two identical cells

Question 20

what are the four steps of DNA becoming chromosome

Answer 20

A double helix, then looped onto a protein, then twisted into a coil and then packed into a chromosome

Question 21

how many chromosomes does the human body have?

Answer 21

46

Question 22

how many pairs of homologous chromosomes do we have?

Answer 22

23

Question 23

what is a karyotype

Answer 23

A photograph of pairs of homologous chromosomes in a cell

Question 24

How many genes are in the human DNA?

Answer 24

27,000

Question 25

what is true breeding

Answer 25

When you are breeding something that only has specific DNA

Question 26

what is a phenotype?

Answer 26

A physical description of an organism traits

Question 27

What is a genotype?

Answer 27

A specific combination of alleles the organism has for a trait

Question 28

what is a homozygous?

Answer 28

An organism with two of the same alias for a specific type

Question 29

what is a heterozygous?

Answer 29

An organism with two different alleles for a trait

Question 30

What is the difference between a recessive allele and a dominant allele?

Answer 30

A recessive allele will not show if there is a diamond allele and a diamond allele will show no matter what if it is present

Question 31

what is it called when neither alleles are Donovan and instead they combine to create a new treat

Answer 31

An incomplete dominance