Answer:
Gene mutations provide new alleles, making these mutations the ultimate source of variation. A gene mutation is an alteration in the DNA nucleotide sequence, producing an alternate sequence, termed an allele. Mutations occur at random, and can be beneficial, neutral, or harmful.
Explanation:
Answer:
Tall and short trees are genotypically homozygous for their trait
Intermediated trees are genotypically heterozygous for their trait.
Explanation:
Let the allele representing tall trait be "T"
and the allele representing short trait be "t"
It is given that when a tall and short plant is fused all the offspring are of intermediate height.
This simply means that the both the plants are genotypically heterozygous for their traits
Genotype for tall tree - TT
Genotype for short tree - tt
TT * tt
Tt, Tt, Tt, Tt
All the offspring are of intermediate height.
Now these two plants of intermediate height are crossed
Tt * Tt
TT, Tt, Tt, tt
Out of four plants two are of intermediate height, one is of tall heingth and the remainig one is of short height
Answer:
A kinesin.
Explanation:
Kinesin is a protein belonging to a class of motor proteins found in eukaryotic cells.
Kinesins move along microtubule (MT) filaments, and are powered by the hydrolysis of adenosine triphosphate (ATP) which means kinesins are ATPases. Active movement of kinesins supports several cellular functions like mitosis, meiosis and transport of cellular cargo, such as in axonal transport.
Answer:
Deep ocean, below 1500 m, with essentially uniform temperature near 3 °C. The thermocline acts as a barrier separating reservoirs of the surface and deep ocean zones.
Explanation:
I don't know if it helps, but good luck :))
Answer:
break them down to monosaccharides
Explanation:
The covalent bonds between Carbon and Hydrogen atoms in polysaccharides and their monomers contain high energy that is tapped by cells to make ATPs (the energy currency of cell) in cellular respiration. Carbohydrates, such as amylose, glycogen, and starch, therefore, need to be broken down to smaller units like glucose that can be utilized by cells metabolic pathways. Carbohydrates are easily hydrolysed to provide energy when the body requires it.
