Flashcards in Bio Deck (55)
Loading flashcards...
1
What is the main event of S phase?
DNA is replicated in preparation for a cell division
2
What does the Law of Segregation say?
The alleles for a trait will separate during formation of gametes and each gamete will only have one allele
3
Describe achondroplasia
An autosomal dominant disorder that causes dwarfism
4
What does autosomal refer too?
A non sex chromosome
5
Describe the heterozygous of a codominant trait
Will equally express both forms of the allele
6
Define epistasis
Refers to genes that mask the expression of other genes
7
Define pleiotropy
Used to describe a single gene that affects several phenotypes
8
Define polygenic
Means that a trait is a combination of many genes
9
Describe cystic fibrosis and its effects
An autosomal recessive trait characterized by excess mucus production that blocks lung passages
10
Describe brachydactyly
An autosomal dominant disorder that causes shortened fingers and toes
11
Describe albinism and its effects
An autosomal recessive trait that is characterized by the absence of the pigment melanin
12
Describe the heterozygous phenotype for incomplete dominance
Would be a blend between two expressions
13
When is a dihybrid cross used?
When two different traits are being crossed
14
Describe the term autosomal dominant
A person will have a condition as long as they have at least one dominant allele
15
What is the function of the stomata
Allows oxygen that is produced by photosynthesis to escape and that they allow carbon dioxide to be obtained
16
Which of the following is the function of rascular tissues in plants?
To transport chemicals and water throughout the plant
17
Which of the following are produced by the light reactions?
Oxygen, ATP, NADPH
18
What is the purpose of transcription?
Allows for the potions of DNA to be copied and transported from the cell to make proteins that help the cell function
19
What are the fragments making up the noncontinuous strand called?
Okazaki fragments
20
Which of the following make up the three steps of cellular respiration
Glycolysis, the kerbs cycle, electron transport chain
21
What did Rosalind Franklins research demonstrate?
DNA had a double-helical structure and sugar-phosphate backbone was on the outside while the bases were on the inside
22
What are the three molecules that make up a nucleotide
Phosphate, nitrogenous base, pentose sugar
23
What prevents each base from pairing with every other base?
Some bases make three bonds while other bases only capable of making two
24
Which of the following would bind together to form a single strand of DNA
Nucleotides
25
In which of the following dies glycolysis take place?
The cytoplasm
26
Where do the kerbs cycle and the electron transport chain occur?
The mitochondria
27
Photosynthesis occurs in which organelles?
Chloroplasts
28
Which of the following are uses of proteins?
Carrying messages from the nucleus through the cell, regulating what passes through the membrane and strengthening connection tissue in skin, bones, etc.
29
How are fats stored in the body?
As triglycerides
30
