It allows the plant to stand upright.
B.A gamete becomes a zygote.
C.A gamete makes a copy of itself.
D.A cell divides into gametes.
Answer:
A cell divides into gametes.
Explanation:
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Answer: D
Explanation: Their chromosomes don't have telomeres
Answer:
decline: decrease
Explanation:
Transpiration is the loss of water from stomata by the process of evaporation. It occurs by the process of diffusion and is driven by the concentration gradient of water vapor. The higher the concentration gradient between air and leaf cells, the higher is the rate of diffusion of water.
On a sunny day, the rate of transpiration is higher since air is less humid and the concentration of water inside the leaf is higher. On the other hand, the air is more humid on a rainy day. The increased water vapor content of air reduces the concentration gradient between air and leaf cells. The reduced concentration gradient decreases the rate of transpiration.
B. because they can be used to transform bacteria
C. because it is difficult to insert new genes into them
D. because they cannot be cut with restriction enzymes
Answer:
Option (B).
Explanation:
Plamids are the extra chromsomal circular DNA present in the bacterias. Plasmid DNA can undergo replication independently to the chromsomal DNA.
Plamids can be used to transform bacteria and used in the molecular techniques. The foreign gene can easily be inserted into the plasmid DNA and used in the formation of recombinant protein.
Thus, the correct answer is option (B).
B. A gamete carries one allele for a gene.
C. A gamete can carry multiple alleles for a trait.
D. Some gametes are dominant and some are recessive.
The principle of segregation given by Gregor Mendel based on his experiments with the pea plants states that alleles of a gene for any trait are segregated during the formation of the gametes. Therefore, a gamete contains only one allele of a gene. When the male and female gamete combines during fertilization, the two alleles (one from each gamete) combine to form the gene.
Hence, the correct answer is 'Option B - A gamete carries one allele for a gene'.
Answer: The correct answer is- B. A gamete carries one allele for a gene.
Gamete ( also called sex cell or reproductive cell) is a haploid cell ( having half number of chromosome as compared to the parent cell) that is produced through a cell division, termed as meiosis in sexually reproducing organisms.
According to Mendel's second law of inheritance that is law of segregation,
For every trait/ characteristic of an individual, there are two variant forms of a gene (called alleles) that are separated from one another so that every gamete possesses one allele. This law is also known as law of purity of gametes.
Thus, option B) is the right answer.