Question

What are phenotypic and genotypic ratio two pink bougainvillea flowers?

Answer 1

ᴡʜᴇɴ ᴛᴡᴏ ᴘʟᴀɴᴛs ᴡɪᴛʜ ᴘɪɴᴋ ғʟᴏᴡᴇʀs ᴀʀᴇ ᴄʀᴏssᴇᴅ, ᴡʜᴀᴛ ɪs ᴘʜᴇɴᴏᴛʏᴘɪᴄ ʀᴀᴛɪᴏ ᴀɴᴅ ɢᴇɴᴏᴛʏᴘɪᴄ ʀᴀᴛɪᴏ ᴏғ ᴛʜᴇ ᴏғғsᴘʀɪɴɢ.  ɢᴇɴᴏᴛʏᴘɪᴄ ʀᴀᴛɪᴏ = 1 : 2 : 1 . ᴘʜᴇɴᴏᴛʏᴘɪᴄ ʀᴀᴛɪᴏ =1 : 2 : 16. ʀᴏᴀɴ ᴄᴏʟᴏʀ ɪɴ ᴄᴀᴛᴛʟᴇ ɪs ᴛʜᴇ ʀᴇsᴜʟᴛ ᴏғ ᴀʙsᴇɴᴄᴇ ᴏғ ᴅᴏᴍɪɴᴀɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ʀᴇᴅ ᴀɴᴅ ᴡʜɪᴛᴇ ᴄᴏʟᴏʀ ɢᴇɴᴇs ᴀɴᴅ ᴛʜᴇ ᴄᴀᴛᴛʟᴇ ᴀʀᴇ ʀᴇᴅ ᴀɴᴅ ᴡʜɪᴛᴇ ɪɴ ᴄᴏʟᴏʀ.

Answer 2

Answer:

Genetics Notes: Patterns of Inheritance & Pedigrees

I. Other Patterns of Inheritance:

**Not all traits are completely dominant**

A. Incomplete Dominance

1. Pattern of inheritance in which heterozygous offspring show a

phenotype between the phenotypes of the parents (in the

middle)

2. NEITHER allele is expressed fully

3. Examples:

a. Snapdragon flowers:

i. Red flower + white flower = PINK flower

b. Cow color:

i. Red (brown) bull + white cow = Roan (Pink) cow

4. Punnett Square Example:

a. Knowing that a certain flower shows a pattern of

incomplete dominance, create a Punnett Square showing

a cross of TWO PINK flowers.

b. r = red; w = white

B. Codominance

1. Pattern of inheritance where both alleles in the heterozygous

offspring are FULLY expressed

2. Example: Human Blood Type

a. Genotype = Letters; Phenotype = Blood Type

b. Type A: AA, AO (homozygous & heterozygous)

c. Type B: BB, BO (homozygous & heterozygous)

d. Type AB: AB (ONLY heterozygous)

e. Type O: OO (ONLY homozygous)

3. Punnett Square Example:

a. Knowing that blood type shows a pattern of

codominance, cross a person with TYPE O blood and one

with TYPE AB blood.