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Flashcards in Final Deck (24)
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1

Heritable features that vary

Characters

2

Combination of the alleles

Genotype

3

Visible traits (determined by genotype)

Phenotype

4

Both alleles are identical

Homozygous

5

Alleles are different

Heterozygous

6

DNA is a _______

Nucleic acid

7

T pairs with ____
G pairs with _____
A pairs with ______
C pairs with ______

A
C
T
G

8

What lays down the initial sequence of rna so DNA replication can begin

Primase

9

What "cuts" apart the hydrogen bonds of the original DNA so replication can begin

Helicase

10

Which of the following is responsible for keeping the nitrogen bases from reforming their hydrogen bonds during DNA replication

Single stranded binding proteins

11

Which way does the leading strand go

Unwinding 3-5

12

Which way does lagging strand go

5-3

13

The 3' carbon is attached to the ____

Phosphate that is apart of the adjacent nucleotide

14

When DNA replicates

Each daughter double helix contains one new strand of DNA and one old strand

15

Which if the following is used to "glue" together separate sequences of DNA

Ligase

16

Nucleotides are composed of ...

Sugars and nitrogen bases

17

Which of the following is a dihybrid cross
Aa
BbRr
Xy
Xxyy

Xy

18

What is homozygous dominant

Two big letters

19

What is homozygous recessive

Two small letters

20

What is heterozygous

Combination of both big and small letters

21

The boxes in the punnet square represent

Potential offspring genotypes

22

Black fur is dominant over white fur. If two heterozygous individuals mate, what would be the expected phenotypic ratio of the offspring

3:1

23

Black fur is dominant over white fur. If the homozygous dominant individual mates with a heterozygous individual, what would the expected phenotypic ratio

4:0

24

Normal vision (CB) is dominant over colorblind (cb) if a normal visioned female and a colorblind make have a colorblind daughter. What was the mothers genotype

XCB Xcb