Punnett Squares | Baamboozle - Baamboozle | The Most Fun Classroom Games!

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Trait G is dominant to trait g. What are the genotypes of offspring when a heterozygous male is crossed with a homozygous recessive female?

2 Gg, 2gg

A characteristic or feature that you receive after you are born

Acquired trait

Describe sexual reproduction

Two parents, genetically diverse offspring, slow process

In monkeys, being playful (P) is dominant to being paranoid (p). A heterozygous female is crossed with a homozygous dominant male. What are the possible genotype(s) of their offspring?

PP and Pp

Y = yellow y = green. What would the phenotype be for a pea that is heterozygous?

yellow

If both parents are homozygous recessive, what is the chance of them having a child with the dominant trait?

0%

In horses, black coloring (B) is dominant, and chestnut coloring (b) is recessive. A homozygous black horse crosses with a chestnut horse. What percentage of offspring are expected to be chestnut?

0%

Why do genotypes have 2 letters?

1 allele from each parent

Which is the recessive trait?

Blue eyes

Y = yellow y = green. In a Punnett square, you find all possible offspring will be homozygous recessive. What is the genotypic ratio?

0 : 0 : 4

What is an allele?

variation of a gene (a specific type of gene)

Combination of alleles BB is called ______.

Homozygous

Y = yellow y = green. In a Punnett square, 1 possible offspring is green and 3 are yellow. What is the phenotypic ratio?

3 : 1

What does it mean to be dominant?

the "overpowering" trait

What is a section of DNA called?

Gene

How many dominant alleles do you have to have in order to show a dominant phenotype?

At least 1

Y = yellow y = green. A pea plant is homozygous recessive. What would its genotype look like?

yy

How do I write a genotype?

2 letters

A trait that comes out the most and is represented by a capital letter is____

dominant

Biological sex with two X chromosomes

Female

Number of generations shown in the pedigree

4

How do you write a phenotypic ratio?

# dominant : # recessive

What do the letters in a Punnett square represent?

They represent alleles, which are different versions of a gene

What do you call the combination of alleles that make up your genetic code?

genotype

What are the two different alleles?

Dominant and recessive

Specialized sex cells called gametes (2)

Female Egg and Male Sperm

In guinea pigs, short hair (S) is dominant to long hair (s). Two heterozygous guinea pigs are crossed. What is the expected ratio of short haired guinea pigs to long haired guinea pigs?

3:1

What is a genotype?

the allele combination of an organism

True or false: Chromosomes contain genes

True

If the combination of alleles are both expressed it is called _____

Codominance

If a parent is Aa and the other parent is also Aa, what are the possible genotypes of their offspring?

AA, Aa, aa

A heterozygous round seed plant (Rr) is crossed with a wrinkled seed plant (rr). What is the probability of getting a wrinkled seed?

50%

Relationship between III-2 and III-3

Cousins and spouse

If the combination of alleles combine to create a new trait-example color in plants

Incomplete dominance

Describe asexually reproduction

One parent, faster reproduction, genetically uniform offspring (same as parent)

DNA has a double _______ structure

Helix

Different versions of the same trait

Variation

What does it mean to be heterozygous?

2 different letters

The passing of traits from parents to offspring

Heredity

What is a phenotype?

the physical characteristic of an organism

A trait that comes out the least and is represented by a lower case letter is ___

recessive trait

Reason as to why organisms have an even number of chromsomes

They get half from their mom and half from their dad (50/50)

What is the passing down of traits from generation to generation?

Heredity

The amount of chromosomes found in the specialized sex cells of humans

23

In pea plants, yellow is dominant and green is recessive. Please assign alleles to these.

Y = yellow y = green

Where is genetic material stored in the cell?

The Nucleus

What do you call the observable traits you can physically see?

phenotype

Two heterozygous brown-eyed parents (Bb) have children. What is the probability their child will have blue eyes?

25%

name another base of DNA that was not mentioned

Thymine, Guanine, Adenine, Cytosine

What does it mean to be recessive?

the "hidden" trait

What does it mean to be homozygous?

same letters

How do you write a genotypic ratio?

# hom dom : # hetero : # hom rec

name a base of DNA

Thymine, Guanine, Adenine, Cytosine

What do you call the passing of genetic material from parent to offspring?

heredity

How do I write an allele?

1 LETTER!!!!

What are the genotypes of a cross between a homozygous dominant individual and a heterozygous individual?

half homozygous dominant, half heterozygous

A characteristic or feature that is passed from parent to offspring

Inherited trait

A major disadvantages of asexual reproduction

Unable to survive environmental changes and

What is the difference between genotype and phenotype?

genotype: combination of alleles, phenotype: how the trait actually looks

How many pairs of chromosomes do humans have?

23 pairs (46 total)

Biological Sex with an X and Y chromosome

Male

How many recessive alleles do you have to have in order to show a recessive phenotype?

You must have 2

Combination of alleles Bb is called _______.

heterozygous

A black rabbit (BB) is crossed with a white rabbit (bb). What color will the babies be?

all be Bb, so black

If a purebred black dog (BB) is crossed with a heterozygous black dog (Bb) what color(s) will their offspring be? (B = black, b = white)

all black

Who was first to investigate heredity by studying pea plants?

Gregor Mendel

Where genetic information is located.

The nucleus