Plants have a cell wall and chloroplasts; animal cells do not have either
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<h2>
2nd statement is true.</h2>
Explanation:
Chromosomes are made up of genes and a gene is made up of two copies of alleles. If an organism has two different types of alleles on its chromosomes then it's a hybrid organism else we call it a pure organism/trait.
- Gene could be dominant or recessive.
- A phenotype is the expression of a trait.
- As 'tall' gene is considered to be dominant so so pea plant with even a single copy of 'tall' gene will have a tall phenotype.
Answer:When inside the egg, both the egg and the sperm prepare for a genetic fusion. After this, the 23 chromosomes from the egg and the 23 chromosomes from the sperm fuse to generate the 1st cell that gives rise to new life, called the zygot
D is the answer! I just had this question and it was right !
Answer:
organ systems
Explanation:
cells combine to form tissues, tissues combine to form organs, and organs combine to form organ systems such as the digestive system.