Answer:
The correct genotype would be-
mom: homozygous recessive, father: heterozygous or homozygous dominant, and son : 50%(if father heterozygous dominant) to 100%( if father is homozygous dominant) chances of being hetrozygous dominant.
Explanation:
Listing the genes in the way that they indicates the real combination of alleles is the genotype of individual.
Ability to roll your tongue is a dominant character which has a dominant and a recessive gene. Assume that the dominant allele ‘R’ is for the ability to rolling tongue and the recessive allele ‘r’ for unable to rolling our tongue. As we know mother can not roll her toungue she must have homozygous recessive alleles that means she has two copy of recessive allele. The father could posess any combination of these alleles: RR (homozygous dominant), or Rr(heterozygous dominant).
Thus, the correct genotype would be
mom: homozygous recessive, father: heterozygous or homozygous dominant, and son : 50%(if father heterozygous dominant) to 100%( if father is homozygous dominant) chances of being hetrozygous dominant.
The correct answer is B.
A food web typically start with a plant which serves as the primary producer of food for the other living organisms that are in the food web. The food web is made up of many tropic level, only about 10% of the energy in one tropic level is transferred to the next trophic level.
Looking at option B, you will discover that the food web start with a plant which is mangrove. Insects feed on mangrove, southern leopard frog feed on insects and raccoon feed on American alligator.
Answer No 1:
The correct option is c) Both mitochondria and chloroplast contain DNA that is different from the nucleus.
Explanation:
The theory of endosymbiosis proposes that all the eukaryotic organisms have arisen from prokaryotes. This theory proposes that organelles such as DNA and nucleus were once prokaryotic cells. These smaller prokaryotic cells were engulfed by the larger prokaryotes which gave rise to eukaryotes eventually. These organelles possess their own DNA which is different from the DNA of the nucleus.
Answer No 2:
The correct option is C) aerobic organisms
Explanation:
The scientists propose that the initial conditions of the Earth were not favourable for supporting aerobic life. Scientists propose that photosynthetic organisms like cyanobacteria released oxygen into the environment which made the life of aerobic organisms possible on Earth.
Answer No 3:
The correct option is A) It proved the theory of spontaneous generation.
Explanation:
Spontaneous generation can be described as the generation of life from non-living things. Some scientists proposed that living organisms are formed by non-living things.
Answer:
The conduct ,aims or qualities that characterize or mark a profession or a professional person is known as professionalism.
Explanation:
Hope it helps.
Answer:
The water vascular system of echinoderms d functions in locomotion and feeding
Explanation:
The water vascular system of echinoderms is a hydraulic system and is an unusual organ system. Echinoderms have a distinct endoskeleton. The water vascular system is essentially a system of fluid-filled canals. It uses water pressure to mediate <em>movement and helps in feeding</em>. It also asists in respiratory, excretory, and some circulatory functions.
