In horses, black colour is dominant over chestnut colour. A hybrid black horse was crossed with chestnut horse.
(a) Give the genotype and phenotype of the offsprings.
(b) What is the probability that the offspring will be chestnut colour?
Answers
Answer:
Block color=BB or Bb
Chestnut color=bb
Trotting gait= TT or Tt
Pacing gait=tt
(a)Homozygous for black color and the pacing gait and a horse homozygous for chestnut color and the trotting gait.
BBtt x bbTT
Bt
Bt
Bt
Bt
bT
BbTt
BbTt
BbTt
BbTt
bT
BbTt
BbTt
BbTt
BbTt
bT
BbTt
BbTt
BbTt
BbTt
bT
BbTt
BbTt
BbTt
BbTt
All progeny will be BbTt Black color and trotting gait
b. a cross is made between two horses, both of who are heterozygous black trotter.
- Give a genotype of each parent horse. BbTt X BbTt
- Determine all the possible kinds of gametes each parent can produce
Parent 1: BT bt Bt bT
Parent 2: BT bt Bt bT
c. Construct a Punnett square and show all the possible gene combinations that results.
BT
bt
Bt
bT
BT
BBTT
BbTt
BBTt
BbTT
bt
BbTt
BbTt
BBTt
BbTT
Bt
BBTt
Bbtt
BBtt
BbTt
bT
BbTT
bbTt
BbTt
bbTT
d. What is the expected phenotype ration of the offspring?
Black color and trotting gait 12:chestnut and trotting gait 1: Black color pacing gait 1: chestnut and trotting gait 2
Explanation:
If you liked my answer then pls mark it as brainliest and plz follow me
⚠️ Mark as brainliest⚠️
⚠️ follow me ⚠️