Ahich R

Question 1

Which best represents the central dogma of genetics

Answer 1

DNA-transcription-RNA-translation-Protein

Question 2

How does the synthesis of mRNA differ in prokaryotes and eukaryotes

Answer 2

Eukaryotes have to splice out no coding portions of their transcript before translation

Question 3

How can one gene be used in the production of a variety of proteins

Answer 3

The splicing of the mRNA to form alternative transcripts allows for different proteins to be made

Question 4

In eukaryotes, a single strand of nucleotides leave the nucleus. This strand includes

Answer 4

Exons

Question 5

The most common way gene expression is regulated in both prokaryotes and eukaryotes is through the

Answer 5

Control of gene transcription

Question 6

Homologous chromosomes

Answer 6

Both

Question 7

Sister chromatids

Answer 7

Double

Question 8

Diploid

Answer 8

Both

Question 9

Replicated homologous chromosomes

Answer 9

Double

Question 10

G2 phase

Answer 10

Neither

Question 11

Centromeres

Answer 11

A has 2 b has 2

Question 12

Interphase

Answer 12

G1 , S , G2

Question 13

Which of the following cell cycle checkpoints would stop cell division after the beginning of mitosis has already occurred

Answer 13

Spindle checkpoint

Question 14

A certain gene is part of a single transduction pathway and activates genes included in cell growth. The gain of function results in transcription of cell growth genes

Answer 14

Proto oncogene

Question 15

The association between homologous chromosome pairs in meiosis 1 is

Answer 15

Synapsis

Question 16

How many different types of gametes can be formed by plants with a genotype of PpYYrrTt

Answer 16

4

Question 17

In snapdragon flowers red is dominant and white is recessive what color would it be if it was incomplete dominant

Answer 17

Pink

Question 18

Principle of segregation states

Answer 18

Alleles separate during gamete formation

Question 19

Law of independence assortment states

Answer 19

Each pair of genes segregate independently of other pairs

Question 20

Nondisjunction can occur in either the 1st or 2nd meiosis division when homologous chromosomes or sister chromatids do not separate

Answer 20

True

Question 21

Proteasome

Answer 21

A cellular organelle that degrades proteins marked with ubiquitin

Question 22

Operon

Answer 22

A grouping of functionally related genes grouped together contained on a single transcription unit

Question 23

Double stranded DNA coils around ____in order to form a _____ further coiling of this structure creates higher order coils known as solenoids

Question 24

Final chromosome number of daughter is haploid

Answer 24

Meiosis

Question 25

4 daughter cells are formed

Answer 25

Meiosis

Question 26

Homologous pairing and crossing over joins maternal and paternal homologous

Answer 26

Meiosis

Question 27

When a heterozygote displays some aspect of multiple different alleles, but neither overpowers the other

Answer 27

Codominance

Question 28

Nondisjunction of Y chromosome can result in having OY chromosome. Result is nonviable zygote

Answer 28

False

Question 29

Genomic imprinting

Answer 29

A gene is activated in the parental germ line, but is expressed when inherited maternally

Question 30

Adrenal hypoplasia

Answer 30

Is carried by mother and is a recessive gene

Question 31

Activator proteins in positive control bind to the operator site preceding the promoter region

Answer 31

False

Question 32

Barr body is highly condensed X chromosome that is inactived in males

Answer 32

False in females cuz they have 2 Chromosmes

Question 33

Failure is sister chromatic to separate properly during meiosis 1 is known as Nondisjunction

Answer 33

False