Test One Chapter Two Flashcards Preview

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Flashcards in Test One Chapter Two Deck (55)
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1

what is the result of mitosis

one round of duplication, one round of cell division, 2 diploid cells

2

what mutation happens in cystic fibrosis

3 nucleotides deleted, deletion in phenylalanine

3

what are the phases in mitosis and meiosis

interphase, prophase, metaphase, anaphase, and telophase

4

what is the genetic explanation for these unexpected phenotypes, primary exceptional

non disjunction

5

what is hemophilia

inability of blood to clot

6

what are the three possible outcomes of mutation

harmful, neutral and beneficial

7

the mutation in cystic fibrosis causes

prevents proper folding of protein, affects function of chloride channel

8

F1 stands for

generation from parents

9

what is the result of meiosis

one round of DNA replication, 2 cell divisions, 4 haploid gametes

10

what happens in G2 phase

prepare for M phase

11

what is thomas hunt morgan credited with

chromosome theory of inheritance and trait was connected to sex

12

what is a genotype

alleles contained in an organism

13

what is an allele

variant of the gene encoding a trait

14

what mutation occurs in sickle cell anemia

change from GAG to GTG which causes aa to go from glutamic to valine, single base change

15

when is a case when traits don't sort independently

possible to have linked genes based on their location on the chromosome and recombination

16

how did mendels work debunk the predominant theory of the time that heredity resulted from a blending of a parental trait

he bred F1 with each other which produced the recessive trait that was hidden in the F1 generation

17

what is sickle cell anemia

mutation of hemoglobin, misshapen RBC and gets stuck in capillaries and impedes blood flow

18

what happens in G1 phase

cells doing cell job, diploid

19

what is a primary exceptional

defective meiosis, usually in mother, x chromosome did not separate, non disjuntion

20

what is mRNA

has nucleotide comp similar to DNA, template for ribosome to create protein sequence transcription

21

P stands for

parents

22

who is affected by hemophilia

mostly males due to it being a recessive on x chromosome and females can be carriers

23

what mutation is the driver of evolution

beneficial which increases viability

24

what is mendel's first law of heredity

allele pairs segregate during gamete formation, law of segregation

25

what happens in S phase

DNA synthesis and duplicate info, 4 copies

26

what is a gene

section of DNA encoding a protein or functional RNA

27

what type of gene trait is sickle cell anemia

autosomal recessive, inherited by both parents

28

what happens in G0 phase

no longer reproducing

29

what organism did thomas hunt morgan work with

drosophila

30

what led to gregor mendel's success (how was his approach different from others?)

focused on individual plant features instead of plant in its entirety. Focused on isolate characteristics of seeds, flowers, stems, and seed pods