Mendelian Genetics

Question 1

trait

Answer 1

any characteristic that can be passed from parent to offspring

Question 2

heredity

Answer 2

passing of traits from parent to offspring

Question 3

genetics

Answer 3

study of heredity

Question 4

F1 gen

Answer 4

the first offspring produced in a breeding experiment (from breeding individuals from P1 generation)

Question 5

F2 gen

Answer 5

the second offspring produced (from breeding individuals from F1 generation)

Question 6

Test cross

Answer 6

crossing with homo recessive

Question 7

law of dominance

Answer 7

offspring will express dominant traits

Question 8

law of segregation

Answer 8

during gamete formation, two alleles that are responsible for each other separate from each other and are then recombined during fertilization to produce genotype for the offspring

Question 9

law of independent assortment

Answer 9

alleles for different traits are distributed to offspring and sex cells independently of each other, can be demonstrated via dihybrid cross

Question 10

(exception) incomplete dominance

Answer 10

neither allele is completely dominant causing a blending of the two traits (use a comma to indicate the two alleles: Red (R)+White (R’)=Pink(RR’))

Question 11

(exception) co-dominance

Answer 11

both alleles are dominant and both are expressed. (feathers of black bird and white birds will both appear on their offspring)

Question 12

(exception multiple alleles)

Answer 12

Genes can have many/multiple alleles (human blood types: I^A, I^B, I^C– where I^A and I^B are co-dominant over I^O

Question 13

What conditions or traits are females responsible for?

Answer 13

hemophilia (inability to blood clot disease), colour blindness, Duchenne muscle dystrophy

Question 14

what conditions or traits are males responsible for?

Answer 14

determine the sex of the baby, turns on genes and hormones for males

Question 15

X-inactivation

Answer 15

• one X chromosome becomes inactive during embryonic development where it condenses compactly (into a Barr body)- THE OCCURRENCE OF A BARR BODY IS RANDOM.

Question 16

Most sex -linked diseases are on the

Answer 16

X-chromsome, which males are at a greater risk of inheriting,

Question 17

Only 1 X needs to have a specific dominant allele

Answer 17

for a dominant X linked trait

Question 18

For females to be affected by a genetic disorder

Answer 18

both X chromosomes have to be affected

Question 19

https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.diffen.com%2Fdifference%2FMeiosis_I_vs_Meiosis_II&psig=AOvVaw2qDJkSSr861jZHU09Lr0Uj&ust=1687385245526000&source=images&cd=vfe&ved=0CBEQjRxqFwoTCMigpYPu0v8CFQAAAAAdAAAAABAE

meiosis 1 and 2 diagram

Answer 19

https://quizizz.com/join/game/U2FsdGVkX19EAGZbSdAWKNPWgRdF9h2OolYldnEIL%252BYY2%252BtU2mLSaPSoOs8ccRDs?gameType=live&page=summary

quizziz cell phases quiz