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63. An allele that is present but unexpressed isdomi
A. recessive B. functional C. dominant D, redundant

64. The classes of RNA molecules made in cells include all of the following except
A. cRNA B. rRNA C.IRNA D. mRNA

65. Ribosomes are complex arangemef
A. RNA and DNA B. RNA and sugars C. DNA and proteins D. RNA and large proteins DNA and proteins

66. Linked genes are A. found on the sex chromosomes B. found in the same nucleus C. joined by a centromere D. found on the same chromosome

67. The genetic make-up of an individual is referred to as its A. phenotype B. genetic pattern C. genotype D. allelotype 68. A cross between plants which differ in two traits is called a cross. A. homozygote B. monohybrid C. dihybrid D. true breed

69. Both DNA and RNA are made up of building blocks known as A. amino acids B. nucleotides C. complementary base pairs D. genes
70. Information obtained by Franklin from X-ray crystallography on DNA suggested that it is a A. ribbon B. hollow cylinder C. helix D. pleated sheet

71. A diploid organism that has two identical alleles for the same trait is called particular trait. for that A. heterozygous B. homozygous C. dominant D. recessive

72. Individuals carrying two copies of each chromosome are A. diploid B. haploid C. homozygous D. heterozygous

Answer :

The answers are:

63. An allele that is present but unexpressed is dominant.

64. The classes of RNA molecules made in cells include all the following except IRNA.

65. Ribosomes are complex arrangement of RNA and DNA.

66. Linked genes are found on the sex chromosomes.

67. The genetic make-up of an individual is referred to as its phenotype.

68. A cross between plants which differ in two traits is called a breed cross.

69. Both DNA and RNA are made up of building blocks known as nucleotides.

70. Information obtained by Franklin from X-ray crystallography on DNA suggested that it is a helix.

71. A diploid organism that has two identical alleles for the same trait is called particular trait for that homozygous.

72. Individuals carrying two copies of each chromosome are diploid.

The most trustworthy textbooks on genetics and evolution define allele as several variations of the same sequence of nucleotides at the same position on a long DNA molecule. At a locus, which is the chromosomal or genomic site of a gene or other genetic component, there are many DNA sequences called alleles that are present. Ribonucleic acid, a polymeric molecule, is necessary for the coding, decoding, control, and expression of genes in a variety of biological activities. All cells include ribosomes, vast molecular factories that create biological proteins. To create polypeptide chains, ribosomes mix amino acids in accordance with the messenger RNA codons. Two polynucleotide chains form a double helix to make deoxyribonucleic acid, a polymer. Genetic material is present in every known organism, including numerous viruses. The genetic make-up of an organism affects all aspects of its growth, development, function, and reproduction. Nucleic acids include things like DNA and ribonucleic acid. A chromosome is a lengthy DNA molecule that contains all or part of an organism's genetic code. The histones, which are the most significant of these proteins in eukaryotic cells, cover the vast majority of chromosomes' incredibly long, thin DNA fibers.

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