Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BIO215 > Mendelian Genetics > Flashcards

Mendelian Genetics Flashcards

1
Q

Who is responsible for the laws governing inheritance of trait

A

Gregor Mendel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Mendel work was not recognized until the turn of the?

A

20 century

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Who is the father of genetics

A

Gregor Mendel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

FtWho is Gregor Mendel

A
  • Austrian monk.
  • Studiee the inheritance of traits in pea plants
  • Develop the laws of inheritance.
    “Between 1856 and 1863 Mendel cultivated and tested 28,000 pea plants
  • He found that the plants offspring retained triats if tye parent
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mendel stated that physical traits are inherited as?

A

Particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mendel did not know that the particle were actually?

A

Chromosomes and DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Traits

A

Any characteristics that can be passed from parents to offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Heredity

A

Passing of tye traits from parents to offspring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Genetics

A

Study of heredity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Type’s of Geneti

A

Monohybrid

Dihybrid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Monohybrid

A

Cross involving a single trait e.g flower colour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Dihybrid

A

Cross involving two traits e.g flower color and plant height

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Punnett square

A

Used to help solve genetics problem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What allow geneticist to predict the possible genotypes and phenotypes of offspring

A

Punnett square

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Alleles

A

Two form of a gene (dominant and recessive)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dominant

A

Stronger of two Gene’s expressed in the hybrid. Represented by a Capital letter R

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Recessive

A

Gene that’s show up less often in a cross

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Genotype

A

Gene combination for a trait (e.g RR, Rr, rr)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Phenotypes

A

The physical features resulting from genotype (e g , white, brown

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Type of genotype

A

Homozygous

Heterozygous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Homozygous genotype

A

Gene combination involving 2 dominant or 2 recessive genes (e.g RR or rr) Also called pure

21
Q

Heterozygous genotype

A

Gene combination of one dominant and One recessive allele (e.g Rr) Also called hybrid

22
Q

Why did Mendel used peas (pisum sativum)

A
  1. Can be grown in a small area
  2. Produce alot of offspring
  3. Produce pure plant when allowed self pollinate several generation
  4. Can be artificially cross-pollinated
23
Q

Pollen contained sperm produced by the?

A

Stamen

24
Q

Ovary contain eggs found inside the .

A

Flowers

25
Q

Pollens Carry sperm to te egg For

A

Fertilization

26
Q

Self fertilization

A

Can occur In the same flower

27
Q

Cross fertilization

A

Can occur between flowers

28
Q

Mendel hand-pollinated flowers using a paintbrush

A

True

29
Q

Eight pea plant traits

A
  1. Seed shape
  2. Seed color
  3. Pod shape
  4. Pod color
  5. Seed coat color
  6. Flower position
  7. Plants Height
  8. Flower color
30
Q

Mendel Observation

The theoretical or expected ratio of plant producing round or wrinkled Seeds is?

A

3 round : 1 wrinkled

31
Q

In Mendel the monohybrid cross review are?

A

25% homozygous dominant RR

50% Heterozygous RR

25% Homozygous recessive RR

–Offspring Called F2 generation
–Genotypic ratio is 1:2:1

32
Q

Two possible test cross of f2 generation in Mendel experiment

A

Homozygous dominant x Hybrid

Homozygous recessive x Hybrid

33
Q

True -breeding individual are homozygous (both alleles) are the same

A

True

34
Q

Lawnod dominance

A

In a Cross of parents that are pure for contracting traits, only one form of the trait will appear in the next generation

35
Q

Law of segregation

A

During the formation of gametes (eggs or sperms), the two alleles responsible for a trait sperate from each other

36
Q

Law of independent assortment

A

Alleles for different traits are distributed to sex cells (and offspring) independently of one another

37
Q

Which law can illustrated using Dihybrid crosses

A

Law of independent assortment

38
Q

Dihybrid cross

A

A breeding experiment that tracks the inheritance of two traits

39
Q

Each pair of alleles segregate independent ly during?

A

Gamete formation

40
Q

Test cross

A

A mating between an individual of unknown genotype and homozygous recessive individual

41
Q

Who experiment with fowls grist demonstrate d that Mendel’s principles applied to animal

A

Williams Bateson (1902)

42
Q

Bateson argued that mutation (not selection) was the Most important force shaping variation in plants Ns animal

A

TRUE

43
Q

Who coined the term

Genetics and zygote

A

Williams Bateson

44
Q

What is the difference between a monohybrid cross and a dihybrid cross?

A

A dihybrid cross involves organisms that are heterozygous for two characters and a
monohybrid only one.

45
Q

The F1 offspring of Mendelʹs classic pea cross always looked like one of the two parental
varieties because

A

one phenotype was completely dominant over another.

46
Q

What was the most significant conclusion that Gregor Mendel drew from his experiments
with pea plants?

A

Traits are inherited in discrete units, and are not the results ofʺblending.ʺ

47
Q

Mendelʹs second law of independent assortment has its basis in which of the following
events of meiosis I?

A

Separation of homologs at anaphase

48
Q

The terms best describes when the phenotype of the heterozygote differs
from the phenotypes of both homozygotes?

A

INCOMPLETE DOMINANCE

49
Q

Which of the following is an example of polygenic inheritance?

A

Skin pigmentation in humans

BIO215 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions