39
Reproductive cells are haploid (have 1/2 the chromosomes), whereas somatic/body cells are diploid (have the full set of chromosomes)
This makes sense if you think about it. Using the example from the question, every dog has 78 chromosomes. This includes two of each (there are two chromosome 1's, two chromosome 2's, etc. This is visible in the karyotype attached). One set of these chromosomes were inherited from the mother, and one set from the father. Each parent contributed 39 chromosomes (one chromosome 1, one chromosome 2, etc.). If the dog in the question were to have 78 chromosomes in its sperm cells, it would contribute two sets to its offspring. When combined with the chromosomes in the egg cell, the offspring would end up with extra chromosomes. Therefore, both the sperm and the egg cells will have 39 chromosomes, one of each. When combined, they will produce offspring with 78 chromosomes, the proper number.
Answer:
The marine clamworm, Nereis, is carnivorous therefore its digestive system differs from that of the herbivorous earthworm, Lumbricus. The mouth and jaws are retractable (Figure 8, 9). If the jaws are retracted, cut along the midline of the pharynx and pull the jaws out with a pair of forceps.
Explanation:
hope it helps:>
Morphological character such as leaf, node density , bud number,etc. change in many plant species in response to factor such as light availability , soil compaction and organic matter removal.
Vegetative and reproductive characteristics are the two systems are common to nearly all vascular plants and provide a unifying theme for the study of plants morphology. It is important for the role to identifying plants, classification is also done by knowing the morphology of the plants.
Morphology is to identify plants using morphological characteristics. Plants can be identifies by observing certain distinguishing morphological characteristics but some plants are closely relatable , by which it shown by the similarity of their flower structures.
To learn more about the Vegetative and reproductive here
brainly.com/question/1213600
#SPJ4
- An aldehyde exists in chain form.
- A ring-shaped hemiacetal exists.
Hemiacetal:
- A reducing sugar is one that reduce other compound and oxidized itself. A sugar can be called as reducing sugar if it has an aldehyde group in the open chain form or hemiacetal group in ring form.
- The hemiacetal consists of a hydrogen bonded to a "R-group," an alcohol, an ether, and a carbon. When an aldehyde and an alcohol interact, the hemiacetal is created.
- The chemistry of carbohydrates revolves around the interactions between hemiacetals and hemiketals. Carbohydrates are made up of long chains of the sugar units known as monosaccharides, much like proteins are long chains of amino acids and DNA and RNA are long chains of nucleotides.
Learn more about hemiacetal here brainly.com/question/2983055
#SPJ4
Answer: through photosynthesis in their membranes
Explanation: