<span>Heterozygotes for inversion have a serious problem chromosome pairing at meiosis and recombination within the characteristic loop leads to chromosome duplication, deficiencies and in some cases two centro meters after recombination in meiosis.The abnormalities are usually not recovered in next generation because gametes or zygotes are receiving them are in-viable.</span>
Answer:
A, B AND E
Sepals, petals, stamens and carpel
Explanation:
These floral structures which are attached to the receptacle in whorls include the following:
- Sepals which protect the inner parts of the flower especially in the early stages of development.
- petals are brightly coloured, large and conspicuous especially in insect-pollinated flowers. If petals are fused, the corolla is said to be gamopetalous.
- Stamens constitute the androecium, which is the male part of the flower. Stamens are made up of filaments and anthers which produce pollen grains.
- Carpel form the pistil or gynoecium which is the female part of the flower. A carpel is made up of stigma, style and ovary.
The hormone being referred to is Epinephrine.
This hormone is secreted mainly in the medulla of the adrenal glands and it functions primarily to increase cardiac output and to raise glucose levels in blood. Normally the hormone is produced during acute stress, and its stimulatory effects fortify and prepare individual for fight or flight.
