Human blood groups are governed by three alleles. These are called I A ; I B ; I O .
I B shows the codominance
I O is recessive to both other alleles
Answer:
no not actually
Explanation: the notheren lights are caused by earths magnetic field what youre thinking of when a star explodes it creates a supernova.
Answer:
Once the embryo sac has developed, pollination has occurred, and the pollen tube has grown into the ovary to make contact with the ovule, fertilization (fusion of egg and sperm) can occur.Typically, the pollen tube reaches the embryo sac via the micropyle (Greek, mikros + pyle = small opening), or opening, in the integuments of the ovule.. There, it discharges its sperm into the embry
Explanation:
The pollen tube enters into the ovule, through the micropyle. Inside the embryo sac, the tip of the pollen tube ruptures and the 2 male gametes are set free near the egg apparatus. Inside the embryo sac, one of the 2 male gametes fuses with the egg nucleus and forms a diploid zygote. This process is called syngamy or true fertilisation.
C. Asthma
- Goitre is due to lack of iodine in diet.
- Arthritis due to inflammation of the joints.
- Bone cancer due to radiation.
- Asthma due to intake of harmful gases like CO₂.
