Answer:
Explanation:
If the disorder is recessive, neither parent has to have the disorder because
they can be heterozygous. The characteristic features of autosomal recessive inheritance is as follows:-
•Appears in both sexes with equal frequency
• Trait tend to skip generations
• Affected offspring are usually born to unaffected parents
• When both parents are heterozygous approx. 1/4 of the progeny will be affected
• Appears more frequently among the children of consanguineous marriages.
The given pedigree follows these features. So the correct option is 'Autosomal recessive trait'.
Please correct me If I am wrong :)
Answer: Commonly known as deadly nightshade, belladonna, devil's cherry, and dwale. One of the most toxic plants found in the Western Hemisphere, all parts of the plant contain tropane alkaloids – as do those of its equally deadly sister species A.
Explanation: It contains several toxic alkaloids including coniine and is poisonous to humans and livestock. Consumption of just a small amount of any part of the plant can cause respiratory paralysis and death. Poison hemlock, with its purple-blotched stems, can cause paralysis if ingested.
Answer:
Fertilized human egg becomes a solid ball of cells known as morula which then differentiate into blastocyst to fully grown human baby.
Explanation:
1. As the zygote is formed it starts to divide and multiply while moving toward the uterus to form a blastocyst within five days.
2. The blastocyst attaches to the wall of the uterus by implanting itself to the uterine lining
3. Within the 15 days of conception, placenta and umbilical cord starts developing to bring in nutrients and eliminate waste
4. The embryo differentiates into three layers- a) the endoderm, b) the mesoderm, and c) the ectoderm. These three layer form different parts of the body
5. By end of 4 weeks, embryo develops distinct head, tail and heart
6. By end of 10th week, limbs, eyes, brain regions, and vertebrae form
7. Around week 36 labors begins.
Answer:
Chloroplasts are found in plant cells only because chloroplasts contain chlorophyll which is essential for photosynthesis. Chlorophyll traps sunlight and uses it to prepare food for plants by the process of photosynthesis.
Answer:
Biodiversity is usually defined as the diversification of living species that exist on earth and the complexities that occurs in the ecosystem. It includes all the plants, animals, humans and micro-organisms.
The biodiversity is often affected by factors such as climate change, loss of habitat area, and occurrence of invasive species.
Three of the biological services that are provided by biodiversity are as follows-
- A large number of medicines are being made from the various plant species that exist in an ecosystem.
- It provides food, on which the organisms are dependent on it.
- It also provides materials that are used for construction purpose and used as shelter.
