Lecture 5: Part II- Mendelian Genetics

Question 1

True or False

A population that breeds shows no variation true for a particular character being studied

Answer 1

True

Question 2

How did you get F1?

Answer 2

Crossing of Parental Generation

Question 3

How did you get F2?

Answer 3

Self-crossing of F1

Question 4

What was observed after F2?

Answer 4

3:1 Phenotypic Ration

Question 5

True or False

F1 defines dominance

Answer 5

True

Question 6

What are the Phenotypic and Genotypic F2?

Answer 6

3: 1 Phenotypic Ratio
1: 2:1 Genotypic Ration

Question 7

True or False

Each gene has only one allele.

Answer 7

False; Every gene has multiple alleles

Question 8

Which generation determines dominance?

Answer 8

F1

Question 9

What does F2 yield?

Answer 9

3: 1 Phenotypic Ratio
1: 2:1 Genotypic Ratio

Question 10

Allele___

Answer 10

one of the different forms of a gene that can exist

Question 11

Males are ____.

Females are _____.

Answer 11

Males: XY
Females: XX

Question 12

Mendel’s discovery proposed that genes are located on _________.

Answer 12

Chromosomes

Question 13

What is an autosome?

Answer 13

Non-sex chromosome

Question 14

How many Autosomes and sex chromosomes do humans have?

Answer 14

44 Autosomes

2 Sex- Autosomes

Question 15

Viruses are able to make RNA an DNA using RNA as a template in

Answer 15

Reverse Transcriptase

Question 16

Template Strand runs

Answer 16

3’ -> 5’

Question 17

RNA Polymerase runs

Answer 17

5’ -> 3’

Question 18

_______ consists of one covalently connected DNA molecule and associated proteins.

Answer 18

Chromosome

Question 19

Viral Genomic DNA may be associated with

Answer 19

Capsid Proteins

Question 20

Prokaryotic DNA is associated with proteins in the

Answer 20

Nucleoid

Question 21

Eukaryotic DNA is organized with protein into complex called

Answer 21

Chromatin

Question 22

_____ source of Antibiotic Resistance

Answer 22

Plasmids

Question 23

True or False

Mitochondrion and Chloroplasts have their own DNA

Answer 23

True

Question 24

True or False;

Introns interrupt mainly tRNA sequence

Answer 24

True

Question 25

_______ can move around within the genome of a single cell.

Answer 25

Transposons

Question 26

True or False;

Introns encode the polypeptide sequence

Answer 26

False; they do NOT encode polypeptide sequence

Question 27

What are telomers?

Answer 27

Cap the ends of linear chromosomes and are needed for successful cell division.

Question 28

What are centromeres?

Answer 28

Fx. in cell division; two sister chromatids reeled together during mitosis.

Question 29

True or False;

Telomeres are lengthened after each round of replication.

Answer 29

False; they are shortened after each round of replication

Question 30

What is the difference between coil and supercoiling?

Answer 30

Coil; helical form

Supercoil: Wraps around itself
“Supercoil” = “Super compressed”

Question 31

_______ consist of DNA wrapped around positively charged piston proteins.

Answer 31

Nucleosomes

Question 32

Are histones (+) or (-) charge?

Answer 32

(+)

Question 33

DNA are wrapped around ______.

Answer 33

Histone Proteins

Question 34

Is bacteria supercoiled or coiled?

Answer 34

Supercoiled around (+) charged proteins